Delete obsolete flag --incompatible_disable_deprecated_attr_params

It is enable by default since Bazel 0.27

https://github.com/bazelbuild/bazel/issues/5818

RELNOTES: None.
PiperOrigin-RevId: 317876348
diff --git a/src/main/java/com/google/devtools/build/lib/analysis/starlark/StarlarkAttrModule.java b/src/main/java/com/google/devtools/build/lib/analysis/starlark/StarlarkAttrModule.java
index ac859d3..610b0a7 100644
--- a/src/main/java/com/google/devtools/build/lib/analysis/starlark/StarlarkAttrModule.java
+++ b/src/main/java/com/google/devtools/build/lib/analysis/starlark/StarlarkAttrModule.java
@@ -157,19 +157,6 @@
       builder.setPropertyFlag("MANDATORY");
     }
 
-    if (containsNonNoneKey(arguments, NON_EMPTY_ARG)
-        && (Boolean) arguments.get(NON_EMPTY_ARG)) {
-      if (thread.getSemantics().incompatibleDisableDeprecatedAttrParams()) {
-        throw new EvalException(
-            null,
-            "'non_empty' is no longer supported. use allow_empty instead. You can use "
-                + "--incompatible_disable_deprecated_attr_params=false to temporarily disable this "
-                + "check.");
-      }
-
-      builder.setPropertyFlag("NON_EMPTY");
-    }
-
     if (containsNonNoneKey(arguments, ALLOW_EMPTY_ARG)
         && !(Boolean) arguments.get(ALLOW_EMPTY_ARG)) {
       builder.setPropertyFlag("NON_EMPTY");
@@ -186,23 +173,6 @@
       }
     }
 
-    if (containsNonNoneKey(arguments, SINGLE_FILE_ARG)
-        && (Boolean) arguments.get(SINGLE_FILE_ARG)) {
-      if (thread.getSemantics().incompatibleDisableDeprecatedAttrParams()) {
-        throw new EvalException(
-            null,
-            "'single_file' is no longer supported. use allow_single_file instead. You can use "
-                + "--incompatible_disable_deprecated_attr_params=false to temporarily disable this "
-                + "check.");
-      }
-      if (containsNonNoneKey(arguments, ALLOW_SINGLE_FILE_ARG)) {
-        throw new EvalException(
-            null, "Cannot specify both single_file (deprecated) and allow_single_file");
-      }
-
-      builder.setPropertyFlag("SINGLE_ARTIFACT");
-    }
-
     if (containsNonNoneKey(arguments, ALLOW_FILES_ARG)
         && containsNonNoneKey(arguments, ALLOW_SINGLE_FILE_ARG)) {
       throw new EvalException(null, "Cannot specify both allow_files and allow_single_file");
@@ -472,7 +442,6 @@
       Boolean mandatory,
       Sequence<?> providers,
       Object allowRules,
-      Boolean singleFile,
       Object cfg,
       Sequence<?> aspects,
       StarlarkThread thread)
@@ -498,8 +467,6 @@
                   providers,
                   ALLOW_RULES_ARG,
                   allowRules,
-                  SINGLE_FILE_ARG,
-                  singleFile,
                   CONFIGURATION_ARG,
                   cfg,
                   ASPECTS_ARG,
@@ -515,7 +482,6 @@
   @Override
   public Descriptor stringListAttribute(
       Boolean mandatory,
-      Boolean nonEmpty,
       Boolean allowEmpty,
       Sequence<?> defaultValue,
       String doc,
@@ -529,8 +495,6 @@
             defaultValue,
             MANDATORY_ARG,
             mandatory,
-            NON_EMPTY_ARG,
-            nonEmpty,
             ALLOW_EMPTY_ARG,
             allowEmpty),
         Type.STRING_LIST,
@@ -540,7 +504,6 @@
   @Override
   public Descriptor intListAttribute(
       Boolean mandatory,
-      Boolean nonEmpty,
       Boolean allowEmpty,
       Sequence<?> defaultValue,
       String doc,
@@ -554,8 +517,6 @@
             defaultValue,
             MANDATORY_ARG,
             mandatory,
-            NON_EMPTY_ARG,
-            nonEmpty,
             ALLOW_EMPTY_ARG,
             allowEmpty),
         Type.INTEGER_LIST,
@@ -572,7 +533,6 @@
       Sequence<?> providers,
       Sequence<?> flags,
       Boolean mandatory,
-      Boolean nonEmpty,
       Object cfg,
       Sequence<?> aspects,
       StarlarkThread thread)
@@ -592,8 +552,6 @@
             flags,
             MANDATORY_ARG,
             mandatory,
-            NON_EMPTY_ARG,
-            nonEmpty,
             ALLOW_EMPTY_ARG,
             allowEmpty,
             CONFIGURATION_ARG,
@@ -619,7 +577,6 @@
       Sequence<?> providers,
       Sequence<?> flags,
       Boolean mandatory,
-      Boolean nonEmpty,
       Object cfg,
       Sequence<?> aspects,
       StarlarkThread thread)
@@ -639,8 +596,6 @@
             flags,
             MANDATORY_ARG,
             mandatory,
-            NON_EMPTY_ARG,
-            nonEmpty,
             ALLOW_EMPTY_ARG,
             allowEmpty,
             CONFIGURATION_ARG,
@@ -690,7 +645,6 @@
       Boolean allowEmpty,
       String doc,
       Boolean mandatory,
-      Boolean nonEmpty,
       StarlarkThread thread)
       throws EvalException {
     BazelStarlarkContext.from(thread).checkLoadingOrWorkspacePhase("attr.output_list");
@@ -700,8 +654,6 @@
         optionMap(
             MANDATORY_ARG,
             mandatory,
-            NON_EMPTY_ARG,
-            nonEmpty,
             ALLOW_EMPTY_ARG,
             allowEmpty),
         BuildType.OUTPUT_LIST,
@@ -714,7 +666,6 @@
       Dict<?, ?> defaultValue,
       String doc,
       Boolean mandatory,
-      Boolean nonEmpty,
       StarlarkThread thread)
       throws EvalException {
     BazelStarlarkContext.from(thread).checkLoadingOrWorkspacePhase("attr.string_dict");
@@ -725,8 +676,6 @@
             defaultValue,
             MANDATORY_ARG,
             mandatory,
-            NON_EMPTY_ARG,
-            nonEmpty,
             ALLOW_EMPTY_ARG,
             allowEmpty),
         Type.STRING_DICT,
@@ -739,7 +688,6 @@
       Dict<?, ?> defaultValue,
       String doc,
       Boolean mandatory,
-      Boolean nonEmpty,
       StarlarkThread thread)
       throws EvalException {
     BazelStarlarkContext.from(thread).checkLoadingOrWorkspacePhase("attr.string_list_dict");
@@ -750,8 +698,6 @@
             defaultValue,
             MANDATORY_ARG,
             mandatory,
-            NON_EMPTY_ARG,
-            nonEmpty,
             ALLOW_EMPTY_ARG,
             allowEmpty),
         Type.STRING_LIST_DICT,
diff --git a/src/main/java/com/google/devtools/build/lib/packages/StarlarkSemanticsOptions.java b/src/main/java/com/google/devtools/build/lib/packages/StarlarkSemanticsOptions.java
index 30e371c..da40768 100644
--- a/src/main/java/com/google/devtools/build/lib/packages/StarlarkSemanticsOptions.java
+++ b/src/main/java/com/google/devtools/build/lib/packages/StarlarkSemanticsOptions.java
@@ -321,20 +321,6 @@
   public boolean incompatibleDisableTargetProviderFields;
 
   @Option(
-      name = "incompatible_disable_deprecated_attr_params",
-      defaultValue = "true",
-      documentationCategory = OptionDocumentationCategory.STARLARK_SEMANTICS,
-      effectTags = {OptionEffectTag.BUILD_FILE_SEMANTICS},
-      metadataTags = {
-        OptionMetadataTag.INCOMPATIBLE_CHANGE,
-        OptionMetadataTag.TRIGGERED_BY_ALL_INCOMPATIBLE_CHANGES
-      },
-      help =
-          "If set to true, disable the deprecated parameters 'single_file' and 'non_empty' on "
-              + "attribute definition methods, such as attr.label().")
-  public boolean incompatibleDisableDeprecatedAttrParams;
-
-  @Option(
       name = "incompatible_disable_depset_items",
       defaultValue = "false",
       documentationCategory = OptionDocumentationCategory.STARLARK_SEMANTICS,
@@ -674,7 +660,6 @@
             .incompatibleDisableTargetProviderFields(incompatibleDisableTargetProviderFields)
             .incompatibleDisableThirdPartyLicenseChecking(
                 incompatibleDisableThirdPartyLicenseChecking)
-            .incompatibleDisableDeprecatedAttrParams(incompatibleDisableDeprecatedAttrParams)
             .incompatibleAlwaysCheckDepsetElements(incompatibleAlwaysCheckDepsetElements)
             .incompatibleDisableDepsetItems(incompatibleDisableDepsetItems)
             .incompatibleDisallowEmptyGlob(incompatibleDisallowEmptyGlob)
diff --git a/src/main/java/com/google/devtools/build/lib/skylarkbuildapi/StarlarkAttrModuleApi.java b/src/main/java/com/google/devtools/build/lib/skylarkbuildapi/StarlarkAttrModuleApi.java
index 01b56f3..bfaf5cd 100644
--- a/src/main/java/com/google/devtools/build/lib/skylarkbuildapi/StarlarkAttrModuleApi.java
+++ b/src/main/java/com/google/devtools/build/lib/skylarkbuildapi/StarlarkAttrModuleApi.java
@@ -115,10 +115,6 @@
   String MANDATORY_DOC =
       "If true, the value must be specified explicitly (even if it has a <code>default</code>).";
 
-  String NON_EMPTY_ARG = "non_empty";
-  String NON_EMPTY_DOC =
-      "True if the attribute must not be empty. Deprecated: Use <code>allow_empty</code> instead.";
-
   String ALLOW_EMPTY_ARG = "allow_empty";
   String ALLOW_EMPTY_DOC = "True if the attribute can be empty.";
 
@@ -133,7 +129,6 @@
           + "argument may also be a single-level list of providers, in which case it is wrapped in "
           + "an outer list with one element.";
 
-  String SINGLE_FILE_ARG = "single_file";
   String ALLOW_SINGLE_FILE_ARG = "allow_single_file";
 
   String VALUES_ARG = "values";
@@ -316,17 +311,6 @@
             positional = false,
             doc = ALLOW_RULES_DOC),
         @Param(
-            name = SINGLE_FILE_ARG,
-            type = Boolean.class,
-            defaultValue = "False",
-            named = true,
-            positional = false,
-            doc =
-                "Deprecated: Use <code>allow_single_file</code> instead. "
-                    + "If True, the label must correspond to a single "
-                    + "<a href=\"File.html\">File</a>. "
-                    + "Access it through <code>ctx.file.&lt;attribute_name&gt;</code>."),
-        @Param(
             name = CONFIGURATION_ARG,
             type = Object.class,
             noneable = true,
@@ -359,7 +343,6 @@
       Boolean mandatory,
       Sequence<?> providers,
       Object allowRules,
-      Boolean singleFile,
       Object cfg,
       Sequence<?> aspects,
       StarlarkThread thread)
@@ -376,12 +359,6 @@
             doc = MANDATORY_DOC,
             named = true),
         @Param(
-            name = NON_EMPTY_ARG,
-            type = Boolean.class,
-            defaultValue = "False",
-            doc = NON_EMPTY_DOC,
-            named = true),
-        @Param(
             name = ALLOW_EMPTY_ARG,
             type = Boolean.class,
             defaultValue = "True",
@@ -406,7 +383,6 @@
       useStarlarkThread = true)
   Descriptor stringListAttribute(
       Boolean mandatory,
-      Boolean nonEmpty,
       Boolean allowEmpty,
       Sequence<?> defaultValue,
       String doc,
@@ -424,12 +400,6 @@
             doc = MANDATORY_DOC,
             named = true),
         @Param(
-            name = NON_EMPTY_ARG,
-            type = Boolean.class,
-            defaultValue = "False",
-            doc = NON_EMPTY_DOC,
-            named = true),
-        @Param(
             name = ALLOW_EMPTY_ARG,
             type = Boolean.class,
             defaultValue = "True",
@@ -454,7 +424,6 @@
       useStarlarkThread = true)
   Descriptor intListAttribute(
       Boolean mandatory,
-      Boolean nonEmpty,
       Boolean allowEmpty,
       Sequence<?> defaultValue,
       String doc,
@@ -534,13 +503,6 @@
             positional = false,
             doc = MANDATORY_DOC),
         @Param(
-            name = NON_EMPTY_ARG,
-            type = Boolean.class,
-            defaultValue = "False",
-            named = true,
-            positional = false,
-            doc = NON_EMPTY_DOC),
-        @Param(
             name = CONFIGURATION_ARG,
             type = Object.class,
             noneable = true,
@@ -567,7 +529,6 @@
       Sequence<?> providers,
       Sequence<?> flags,
       Boolean mandatory,
-      Boolean nonEmpty,
       Object cfg,
       Sequence<?> aspects,
       StarlarkThread thread)
@@ -648,13 +609,6 @@
             positional = false,
             doc = MANDATORY_DOC),
         @Param(
-            name = NON_EMPTY_ARG,
-            type = Boolean.class,
-            defaultValue = "False",
-            named = true,
-            positional = false,
-            doc = NON_EMPTY_DOC),
-        @Param(
             name = CONFIGURATION_ARG,
             type = Object.class,
             noneable = true,
@@ -681,7 +635,6 @@
       Sequence<?> providers,
       Sequence<?> flags,
       Boolean mandatory,
-      Boolean nonEmpty,
       Object cfg,
       Sequence<?> aspects,
       StarlarkThread thread)
@@ -764,18 +717,11 @@
             defaultValue = "False",
             named = true,
             positional = false,
-            doc = MANDATORY_DOC),
-        @Param(
-            name = NON_EMPTY_ARG,
-            type = Boolean.class,
-            defaultValue = "False",
-            named = true,
-            positional = false,
-            doc = NON_EMPTY_DOC)
+            doc = MANDATORY_DOC)
       },
       useStarlarkThread = true)
   Descriptor outputListAttribute(
-      Boolean allowEmpty, String doc, Boolean mandatory, Boolean nonEmpty, StarlarkThread thread)
+      Boolean allowEmpty, String doc, Boolean mandatory, StarlarkThread thread)
       throws EvalException;
 
   @StarlarkMethod(
@@ -810,14 +756,7 @@
             named = true,
             positional = false,
             defaultValue = "False",
-            doc = MANDATORY_DOC),
-        @Param(
-            name = NON_EMPTY_ARG,
-            type = Boolean.class,
-            defaultValue = "False",
-            named = true,
-            positional = false,
-            doc = NON_EMPTY_DOC)
+            doc = MANDATORY_DOC)
       },
       useStarlarkThread = true)
   Descriptor stringDictAttribute(
@@ -825,7 +764,6 @@
       Dict<?, ?> defaultValue,
       String doc,
       Boolean mandatory,
-      Boolean nonEmpty,
       StarlarkThread thread)
       throws EvalException;
 
@@ -861,14 +799,7 @@
             defaultValue = "False",
             named = true,
             positional = false,
-            doc = MANDATORY_DOC),
-        @Param(
-            name = NON_EMPTY_ARG,
-            type = Boolean.class,
-            defaultValue = "False",
-            named = true,
-            positional = false,
-            doc = NON_EMPTY_DOC)
+            doc = MANDATORY_DOC)
       },
       useStarlarkThread = true)
   Descriptor stringListDictAttribute(
@@ -876,7 +807,6 @@
       Dict<?, ?> defaultValue,
       String doc,
       Boolean mandatory,
-      Boolean nonEmpty,
       StarlarkThread thread)
       throws EvalException;
 
diff --git a/src/main/java/com/google/devtools/build/lib/syntax/StarlarkSemantics.java b/src/main/java/com/google/devtools/build/lib/syntax/StarlarkSemantics.java
index 91d35d5..ee69211 100644
--- a/src/main/java/com/google/devtools/build/lib/syntax/StarlarkSemantics.java
+++ b/src/main/java/com/google/devtools/build/lib/syntax/StarlarkSemantics.java
@@ -236,8 +236,6 @@
 
   public abstract boolean incompatibleDisableThirdPartyLicenseChecking();
 
-  public abstract boolean incompatibleDisableDeprecatedAttrParams();
-
   public abstract boolean incompatibleDisableDepsetItems();
 
   public abstract boolean incompatibleDisallowEmptyGlob();
@@ -335,7 +333,6 @@
           .incompatibleApplicableLicenses(false)
           .incompatibleDisableTargetProviderFields(false)
           .incompatibleDisableThirdPartyLicenseChecking(true)
-          .incompatibleDisableDeprecatedAttrParams(true)
           .incompatibleDisableDepsetItems(false)
           .incompatibleDisallowEmptyGlob(false)
           .incompatibleDisallowStructProviderSyntax(false)
@@ -404,8 +401,6 @@
 
     public abstract Builder incompatibleDisableThirdPartyLicenseChecking(boolean value);
 
-    public abstract Builder incompatibleDisableDeprecatedAttrParams(boolean value);
-
     public abstract Builder incompatibleDisableDepsetItems(boolean value);
 
     public abstract Builder incompatibleDisallowEmptyGlob(boolean value);
diff --git a/src/main/java/com/google/devtools/build/skydoc/SkydocMain.java b/src/main/java/com/google/devtools/build/skydoc/SkydocMain.java
index 173e02a..fb9ef4c 100644
--- a/src/main/java/com/google/devtools/build/skydoc/SkydocMain.java
+++ b/src/main/java/com/google/devtools/build/skydoc/SkydocMain.java
@@ -194,7 +194,6 @@
             .build();
     parser.parseAndExitUponError(args);
     StarlarkSemanticsOptions semanticsOptions = parser.getOptions(StarlarkSemanticsOptions.class);
-    semanticsOptions.incompatibleDisableDeprecatedAttrParams = false;
     semanticsOptions.incompatibleNewActionsApi = false;
     SkydocOptions skydocOptions = parser.getOptions(SkydocOptions.class);
 
diff --git a/src/main/java/com/google/devtools/build/skydoc/fakebuildapi/FakeStarlarkAttrModuleApi.java b/src/main/java/com/google/devtools/build/skydoc/fakebuildapi/FakeStarlarkAttrModuleApi.java
index 6eba2ed..0a0698c 100644
--- a/src/main/java/com/google/devtools/build/skydoc/fakebuildapi/FakeStarlarkAttrModuleApi.java
+++ b/src/main/java/com/google/devtools/build/skydoc/fakebuildapi/FakeStarlarkAttrModuleApi.java
@@ -71,7 +71,6 @@
       Boolean mandatory,
       Sequence<?> providers,
       Object allowRules,
-      Boolean singleFile,
       Object cfg,
       Sequence<?> aspects,
       StarlarkThread thread)
@@ -86,7 +85,6 @@
   @Override
   public Descriptor stringListAttribute(
       Boolean mandatory,
-      Boolean nonEmpty,
       Boolean allowEmpty,
       Sequence<?> defaultList,
       String doc,
@@ -99,7 +97,6 @@
   @Override
   public Descriptor intListAttribute(
       Boolean mandatory,
-      Boolean nonEmpty,
       Boolean allowEmpty,
       Sequence<?> defaultList,
       String doc,
@@ -119,7 +116,6 @@
       Sequence<?> providers,
       Sequence<?> flags,
       Boolean mandatory,
-      Boolean nonEmpty,
       Object cfg,
       Sequence<?> aspects,
       StarlarkThread thread)
@@ -141,7 +137,6 @@
       Sequence<?> providers,
       Sequence<?> flags,
       Boolean mandatory,
-      Boolean nonEmpty,
       Object cfg,
       Sequence<?> aspects,
       StarlarkThread thread)
@@ -176,7 +171,6 @@
       Boolean allowEmpty,
       String doc,
       Boolean mandatory,
-      Boolean nonEmpty,
       StarlarkThread thread)
       throws EvalException {
     return new FakeDescriptor(AttributeType.OUTPUT_LIST, doc, mandatory, ImmutableList.of(), "");
@@ -188,7 +182,6 @@
       Dict<?, ?> defaultO,
       String doc,
       Boolean mandatory,
-      Boolean nonEmpty,
       StarlarkThread thread)
       throws EvalException {
     return new FakeDescriptor(
@@ -201,7 +194,6 @@
       Dict<?, ?> defaultO,
       String doc,
       Boolean mandatory,
-      Boolean nonEmpty,
       StarlarkThread thread)
       throws EvalException {
     return new FakeDescriptor(
diff --git a/src/test/java/com/google/devtools/build/lib/packages/StarlarkSemanticsConsistencyTest.java b/src/test/java/com/google/devtools/build/lib/packages/StarlarkSemanticsConsistencyTest.java
index 0d5730b..3b1aeb2 100644
--- a/src/test/java/com/google/devtools/build/lib/packages/StarlarkSemanticsConsistencyTest.java
+++ b/src/test/java/com/google/devtools/build/lib/packages/StarlarkSemanticsConsistencyTest.java
@@ -142,7 +142,6 @@
         "--incompatible_applicable_licenses=" + rand.nextBoolean(),
         "--incompatible_depset_for_libraries_to_link_getter=" + rand.nextBoolean(),
         "--incompatible_disable_target_provider_fields=" + rand.nextBoolean(),
-        "--incompatible_disable_deprecated_attr_params=" + rand.nextBoolean(),
         "--incompatible_disable_depset_items=" + rand.nextBoolean(),
         "--incompatible_disable_third_party_license_checking=" + rand.nextBoolean(),
         "--incompatible_disallow_empty_glob=" + rand.nextBoolean(),
@@ -194,7 +193,6 @@
         .incompatibleApplicableLicenses(rand.nextBoolean())
         .incompatibleDepsetForLibrariesToLinkGetter(rand.nextBoolean())
         .incompatibleDisableTargetProviderFields(rand.nextBoolean())
-        .incompatibleDisableDeprecatedAttrParams(rand.nextBoolean())
         .incompatibleDisableDepsetItems(rand.nextBoolean())
         .incompatibleDisableThirdPartyLicenseChecking(rand.nextBoolean())
         .incompatibleDisallowEmptyGlob(rand.nextBoolean())
diff --git a/src/test/java/com/google/devtools/build/lib/skylark/StarlarkRuleClassFunctionsTest.java b/src/test/java/com/google/devtools/build/lib/skylark/StarlarkRuleClassFunctionsTest.java
index 7d2de2d..dadd537 100644
--- a/src/test/java/com/google/devtools/build/lib/skylark/StarlarkRuleClassFunctionsTest.java
+++ b/src/test/java/com/google/devtools/build/lib/skylark/StarlarkRuleClassFunctionsTest.java
@@ -269,26 +269,6 @@
   }
 
   @Test
-  public void testDisableDeprecatedParams() throws Exception {
-    setStarlarkSemanticsOptions("--incompatible_disable_deprecated_attr_params=true");
-
-    // Verify 'single_file' deprecation.
-    EvalException expected =
-        assertThrows(EvalException.class, () -> ev.eval("attr.label(single_file = True)"));
-    assertThat(expected).hasMessageThat().contains(
-        "'single_file' is no longer supported. use allow_single_file instead.");
-    Attribute attr = buildAttribute("a1", "attr.label(allow_single_file = ['.xml'])");
-    assertThat(attr.isSingleArtifact()).isTrue();
-
-    // Verify 'non_empty' deprecation.
-    expected = assertThrows(EvalException.class, () -> ev.eval("attr.string_list(non_empty=True)"));
-    assertThat(expected).hasMessageThat().contains(
-        "'non_empty' is no longer supported. use allow_empty instead.");
-    attr = buildAttribute("a2", "attr.string_list(allow_empty=False)");
-    assertThat(attr.isNonEmpty()).isTrue();
-  }
-
-  @Test
   public void testAttrAllowedSingleFileTypesWrongType() throws Exception {
     ev.checkEvalErrorContains(
         "allow_single_file should be a boolean or a string list",
@@ -617,15 +597,6 @@
   }
 
   @Test
-  public void testAttrNonEmpty() throws Exception {
-    setStarlarkSemanticsOptions("--incompatible_disable_deprecated_attr_params=false");
-
-    Attribute attr = buildAttribute("a1", "attr.string_list(non_empty=True)");
-    assertThat(attr.isNonEmpty()).isTrue();
-    assertThat(attr.isMandatory()).isFalse();
-  }
-
-  @Test
   public void testAttrAllowEmpty() throws Exception {
     Attribute attr = buildAttribute("a1", "attr.string_list(allow_empty=False)");
     assertThat(attr.isNonEmpty()).isTrue();
@@ -733,9 +704,6 @@
         "attr.label(default=f)",
         "attr.label_list(default=f)",
         "attr.label_keyed_string_dict(default=f)");
-    // Note: the default parameter of attr.output{,_list} is deprecated
-    // (see --incompatible_no_output_attr_default)
-
     // For all other attribute types, the default value may not be a function.
     //
     // (This is a regression test for github.com/bazelbuild/bazel/issues/9463.
diff --git a/src/test/java/com/google/devtools/build/skydoc/SkydocTest.java b/src/test/java/com/google/devtools/build/skydoc/SkydocTest.java
index ad9bd95..c054324 100644
--- a/src/test/java/com/google/devtools/build/skydoc/SkydocTest.java
+++ b/src/test/java/com/google/devtools/build/skydoc/SkydocTest.java
@@ -112,7 +112,7 @@
         "    doc = 'This is my rule. It does stuff.',",
         "    implementation = rule_impl,",
         "    attrs = {",
-        "        'a': attr.label(mandatory=True, allow_files=True, single_file=True),",
+        "        'a': attr.label(mandatory=True, allow_single_file=True),",
         "        'b': attr.string_dict(mandatory=True),",
         "        'c': attr.output(mandatory=True),",
         "        'd': attr.bool(default=False, mandatory=False),",