Revert "Revert "mixed builds correctly reference stubs libs""

This reverts commit 1db4348734acfd0b4a38e2ff49dca2df4bac0d84.

Changes from original:
  - extracted function to add the current version to stub
    versions for bp2build.
  - added libc++ to mixed builds denylist

Reason for revert: re-uploading with fix in topic

Change-Id: Ifa0ed456bf8cb4a7f861d6826263adfedb4fdd9c
diff --git a/cc/library.go b/cc/library.go
index 1daeeff..ee09389 100644
--- a/cc/library.go
+++ b/cc/library.go
@@ -936,9 +936,17 @@
 func (handler *ccLibraryBazelHandler) QueueBazelCall(ctx android.BaseModuleContext, label string) {
 	bazelCtx := ctx.Config().BazelContext
 	bazelCtx.QueueBazelRequest(label, cquery.GetCcInfo, android.GetConfigKeyApexVariant(ctx, GetApexConfigKey(ctx)))
+	if v := handler.module.library.stubsVersion(); v != "" {
+		stubsLabel := label + "_stub_libs-" + v
+		bazelCtx.QueueBazelRequest(stubsLabel, cquery.GetCcInfo, android.GetConfigKeyApexVariant(ctx, GetApexConfigKey(ctx)))
+	}
 }
 
 func (handler *ccLibraryBazelHandler) ProcessBazelQueryResponse(ctx android.ModuleContext, label string) {
+	if v := handler.module.library.stubsVersion(); v != "" {
+		// if we are a stubs variant, just use the Bazel stubs target
+		label = label + "_stub_libs-" + v
+	}
 	bazelCtx := ctx.Config().BazelContext
 	ccInfo, err := bazelCtx.GetCcInfo(label, android.GetConfigKeyApexVariant(ctx, GetApexConfigKey(ctx)))
 	if err != nil {
@@ -967,6 +975,9 @@
 	}
 
 	handler.module.setAndroidMkVariablesFromCquery(ccInfo.CcAndroidMkInfo)
+
+	cctx := moduleContextFromAndroidModuleContext(ctx, handler.module)
+	addStubDependencyProviders(cctx)
 }
 
 func (library *libraryDecorator) setFlagExporterInfoFromCcInfo(ctx android.ModuleContext, ccInfo cquery.CcInfo) {
@@ -1792,6 +1803,12 @@
 		Target:                               ctx.Target(),
 	})
 
+	addStubDependencyProviders(ctx)
+
+	return unstrippedOutputFile
+}
+
+func addStubDependencyProviders(ctx ModuleContext) {
 	stubs := ctx.GetDirectDepsWithTag(stubImplDepTag)
 	if len(stubs) > 0 {
 		var stubsInfo []SharedStubLibrary
@@ -1806,12 +1823,9 @@
 		}
 		ctx.SetProvider(SharedLibraryStubsProvider, SharedLibraryStubsInfo{
 			SharedStubLibraries: stubsInfo,
-
-			IsLLNDK: ctx.IsLlndk(),
+			IsLLNDK:             ctx.IsLlndk(),
 		})
 	}
-
-	return unstrippedOutputFile
 }
 
 func (library *libraryDecorator) unstrippedOutputFilePath() android.Path {
@@ -2397,7 +2411,10 @@
 	}
 
 	// Future API level is implicitly added if there isn't
-	vers := library.Properties.Stubs.Versions
+	return addCurrentVersionIfNotPresent(library.Properties.Stubs.Versions)
+}
+
+func addCurrentVersionIfNotPresent(vers []string) []string {
 	if inList(android.FutureApiLevel.String(), vers) {
 		return vers
 	}
@@ -2662,7 +2679,7 @@
 // normalizeVersions modifies `versions` in place, so that each raw version
 // string becomes its normalized canonical form.
 // Validates that the versions in `versions` are specified in least to greatest order.
-func normalizeVersions(ctx android.BaseModuleContext, versions []string) {
+func normalizeVersions(ctx android.BazelConversionPathContext, versions []string) {
 	var previous android.ApiLevel
 	for i, v := range versions {
 		ver, err := android.ApiLevelFromUser(ctx, v)