Make @SkylarkCallable.name mandatory.

RELNOTES: None.
PiperOrigin-RevId: 201748802

src/main/java/com/google/devtools/build/lib/skylarkbuildapi/SkylarkRuleContextApi.java

diff --git a/src/main/java/com/google/devtools/build/lib/skylarkbuildapi/SkylarkRuleContextApi.java b/src/main/java/com/google/devtools/build/lib/skylarkbuildapi/SkylarkRuleContextApi.java
index 7c1be4c..12c2c52 100644
--- a/src/main/java/com/google/devtools/build/lib/skylarkbuildapi/SkylarkRuleContextApi.java
+++ b/src/main/java/com/google/devtools/build/lib/skylarkbuildapi/SkylarkRuleContextApi.java
@@ -264,10 +264,15 @@
   )
   public FileRootApi getGenfilesDirectory() throws EvalException;
 
-  @SkylarkCallable(structField = true, doc = OUTPUTS_DOC)
+  @SkylarkCallable(
+    name = "outputs",
+    structField = true,
+    doc = OUTPUTS_DOC
+  )
   public ClassObject outputs() throws EvalException;
 
   @SkylarkCallable(
+    name = "rule",
     structField = true,
     doc =
         "Returns rule attributes descriptor for the rule that aspect is applied to."
@@ -276,8 +281,8 @@
   public SkylarkAttributesCollectionApi rule() throws EvalException;
 
   @SkylarkCallable(
-    structField = true,
     name = "aspect_ids",
+    structField = true,
     doc =
         "Returns a list ids for all aspects applied to the target."
             + " Only available in aspect implementation functions."
@@ -285,18 +290,28 @@
   public ImmutableList<String> aspectIds() throws EvalException;
 
   @SkylarkCallable(
+    name = "var",
     structField = true,
     doc = "Dictionary (String to String) of configuration variables."
   )
   public SkylarkDict<String, String> var() throws EvalException;
 
-  @SkylarkCallable(structField = true, doc = "Toolchains required for this rule.")
+  @SkylarkCallable(
+    name = "toolchains",
+    structField = true,
+    doc = "Toolchains required for this rule."
+  )
   public SkylarkIndexable toolchains() throws EvalException;
 
-  @SkylarkCallable(doc = "Splits a shell command to a list of tokens.", documented = false)
+  @SkylarkCallable(
+    name = "tokenize",
+    doc = "Splits a shell command to a list of tokens.",
+    documented = false
+  )
   public SkylarkList<String> tokenize(String optionString) throws FuncallException, EvalException;
 
   @SkylarkCallable(
+    name = "expand",
     doc =
         "Expands all references to labels embedded within a string for all files using a mapping "
             + "from definition labels (i.e. the label in the output type attribute) to files. "
@@ -366,11 +381,15 @@
   )
   public FileApi newDirectory(String name, Object siblingArtifactUnchecked) throws EvalException;
 
-  @SkylarkCallable(documented = false)
+  @SkylarkCallable(
+    name = "check_placeholders",
+    documented = false
+  )
   public boolean checkPlaceholders(String template, SkylarkList<Object> allowedPlaceholders)
       throws EvalException;
 
   @SkylarkCallable(
+      name = "expand_make_variables",
       doc =
           "<b>Deprecated.</b> Use <a href=\"ctx.html#var\">ctx.var</a> to access the variables "
               + "instead.<br>Returns a string after expanding all references to \"Make "