Revert the Starlark debugger flags to their old name.

IDEs are using those flags, we don't want to break them now. We could have set
oldName so that both names would be supported. However, we plan to make the flags
non experimental in the future. It's not worth doing two renamings, and we can
live with the old names for now.

RELNOTES: None.
PiperOrigin-RevId: 318534237
diff --git a/src/main/java/com/google/devtools/build/lib/starlarkdebug/module/StarlarkDebuggerOptions.java b/src/main/java/com/google/devtools/build/lib/starlarkdebug/module/StarlarkDebuggerOptions.java
index 06878f7..6f4c464 100644
--- a/src/main/java/com/google/devtools/build/lib/starlarkdebug/module/StarlarkDebuggerOptions.java
+++ b/src/main/java/com/google/devtools/build/lib/starlarkdebug/module/StarlarkDebuggerOptions.java
@@ -21,9 +21,11 @@
 import com.google.devtools.common.options.OptionsBase;
 
 /** Configuration options for Starlark debugging. */
+// TODO(laurentlb): Rename the flags (remove 'experimental' and replace 'skylark' with 'starlark')
+// when the interpreter code is more stable.
 public final class StarlarkDebuggerOptions extends OptionsBase {
   @Option(
-      name = "experimental_starlark_debug",
+      name = "experimental_skylark_debug",
       defaultValue = "false",
       documentationCategory = OptionDocumentationCategory.UNDOCUMENTED,
       effectTags = {OptionEffectTag.EXECUTION},
@@ -34,7 +36,7 @@
   public boolean debugStarlark;
 
   @Option(
-      name = "experimental_starlark_debug_server_port",
+      name = "experimental_skylark_debug_server_port",
       defaultValue = "7300",
       documentationCategory = OptionDocumentationCategory.UNDOCUMENTED,
       effectTags = {OptionEffectTag.EXECUTION},
@@ -43,7 +45,7 @@
   public int debugServerPort;
 
   @Option(
-      name = "experimental_starlark_debug_verbose_logging",
+      name = "experimental_skylark_debug_verbose_logging",
       defaultValue = "false",
       documentationCategory = OptionDocumentationCategory.UNDOCUMENTED,
       effectTags = {OptionEffectTag.TERMINAL_OUTPUT},