python: port PyWrapCcInfo to Starlark and enable it

Because providers are based on identity, and there are Java tests that need
to reference the provider, it's hard to split up the changes, so it's all
in a single change.

The Java class is kept to make usage by the Java tests easier; it isn't
actually used outside of tests.

Work towards #15897

PiperOrigin-RevId: 523748496
Change-Id: I1f5e9316bb3c4aed6c36fbd317914e4deea26f61

src/main/java/com/google/devtools/build/lib/bazel/rules/BazelRuleClassProvider.java

@@ -474,8 +474,7 @@ public void init(ConfiguredRuleClassProvider.Builder builder) {
               new PyBootstrap(
                   PyInfo.PROVIDER,
                   PyStarlarkTransitions.INSTANCE,
-                  new GoogleLegacyStubs.PyWrapCcHelper(),
-                  new GoogleLegacyStubs.PyWrapCcInfoProvider()));
+                  new GoogleLegacyStubs.PyWrapCcHelper()));
 
           builder.addSymlinkDefinition(PySymlink.PY2);
           builder.addSymlinkDefinition(PySymlink.PY3);

src/main/java/com/google/devtools/build/lib/starlarkbuildapi/python/PyBootstrap.java

@@ -21,7 +21,6 @@
 import com.google.devtools.build.lib.starlarkbuildapi.core.Bootstrap;
 import com.google.devtools.build.lib.starlarkbuildapi.core.ContextAndFlagGuardedValue;
 import com.google.devtools.build.lib.starlarkbuildapi.cpp.PyWrapCcHelperApi;
-import com.google.devtools.build.lib.starlarkbuildapi.cpp.PyWrapCcInfoApi;
 import com.google.devtools.build.lib.starlarkbuildapi.python.PyInfoApi.PyInfoProviderApi;
 import com.google.devtools.build.lib.starlarkbuildapi.stubs.ProviderStub;
 import net.starlark.java.eval.FlagGuardedValue;
@@ -38,17 +37,14 @@ public class PyBootstrap implements Bootstrap {
   private final PyInfoProviderApi pyInfoProviderApi;
   private final PyStarlarkTransitionsApi pyStarlarkTransitionsApi;
   private final PyWrapCcHelperApi<?, ?, ?, ?, ?, ?, ?, ?, ?> pyWrapCcHelper;
-  private final PyWrapCcInfoApi.Provider pyWrapCcInfoProvider;
 
   public PyBootstrap(
       PyInfoProviderApi pyInfoProviderApi,
       PyStarlarkTransitionsApi pyStarlarkTransitionsApi,
-      PyWrapCcHelperApi<?, ?, ?, ?, ?, ?, ?, ?, ?> pyWrapCcHelper,
-      PyWrapCcInfoApi.Provider pyWrapCcInfoProvider) {
+      PyWrapCcHelperApi<?, ?, ?, ?, ?, ?, ?, ?, ?> pyWrapCcHelper) {
     this.pyInfoProviderApi = pyInfoProviderApi;
     this.pyStarlarkTransitionsApi = pyStarlarkTransitionsApi;
     this.pyWrapCcHelper = pyWrapCcHelper;
-    this.pyWrapCcInfoProvider = pyWrapCcInfoProvider;
   }
 
   @Override
@@ -79,7 +75,8 @@ public void addBindingsToBuilder(ImmutableMap.Builder<String, Object> builder) {
         "PyWrapCcInfo",
         ContextAndFlagGuardedValue.onlyInAllowedReposOrWhenIncompatibleFlagIsFalse(
             BuildLanguageOptions.INCOMPATIBLE_STOP_EXPORTING_LANGUAGE_MODULES,
-            pyWrapCcInfoProvider,
+            // Workaround for https://github.com/bazelbuild/bazel/issues/17713
+            new ProviderStub(),
             allowedRepositories));
     builder.put(
         "PyCcLinkParamsProvider",