Have ConvertWBp2build use Bp2buildMutatorContext

This no-op refactoring facilitates some upcoming functional changes for
"bp2build allowlist v2". The work requires that the bp2build conversion
mutator be changed from a TopDown mutator to a BottomUp mutator.
Refactoring all bp2build-related methods so that they use Bp2buildMutatorContext
makes it easier to make this functional change without touching tens of
files and multiple projects.

Bug: 285631638
Test: m bp2build
Change-Id: I3d1ef3064146e959c6f0dc315350fc9764bf2bd2
diff --git a/cc/library.go b/cc/library.go
index 7e0c55a..b9dc71b 100644
--- a/cc/library.go
+++ b/cc/library.go
@@ -308,7 +308,7 @@
 	}
 }
 
-func libraryBp2Build(ctx android.TopDownMutatorContext, m *Module) {
+func libraryBp2Build(ctx android.Bp2buildMutatorContext, m *Module) {
 	sharedAttrs := bp2BuildParseSharedProps(ctx, m)
 	staticAttrs := bp2BuildParseStaticProps(ctx, m)
 	baseAttributes := bp2BuildParseBaseProps(ctx, m)
@@ -480,7 +480,7 @@
 	createStubsBazelTargetIfNeeded(ctx, m, compilerAttrs, exportedIncludes, baseAttributes)
 }
 
-func createStubsBazelTargetIfNeeded(ctx android.TopDownMutatorContext, m *Module, compilerAttrs compilerAttributes, exportedIncludes BazelIncludes, baseAttributes baseAttributes) {
+func createStubsBazelTargetIfNeeded(ctx android.Bp2buildMutatorContext, m *Module, compilerAttrs compilerAttributes, exportedIncludes BazelIncludes, baseAttributes baseAttributes) {
 	if compilerAttrs.stubsSymbolFile != nil && len(compilerAttrs.stubsVersions.Value) > 0 {
 		stubSuitesProps := bazel.BazelTargetModuleProperties{
 			Rule_class:        "cc_stub_suite",
@@ -2886,7 +2886,7 @@
 	return outputFile
 }
 
-func bp2buildParseAbiCheckerProps(ctx android.TopDownMutatorContext, module *Module) bazelCcHeaderAbiCheckerAttributes {
+func bp2buildParseAbiCheckerProps(ctx android.Bp2buildMutatorContext, module *Module) bazelCcHeaderAbiCheckerAttributes {
 	lib, ok := module.linker.(*libraryDecorator)
 	if !ok {
 		return bazelCcHeaderAbiCheckerAttributes{}
@@ -2909,7 +2909,7 @@
 	return abiCheckerAttrs
 }
 
-func sharedOrStaticLibraryBp2Build(ctx android.TopDownMutatorContext, module *Module, isStatic bool) {
+func sharedOrStaticLibraryBp2Build(ctx android.Bp2buildMutatorContext, module *Module, isStatic bool) {
 	baseAttributes := bp2BuildParseBaseProps(ctx, module)
 	compilerAttrs := baseAttributes.compilerAttributes
 	linkerAttrs := baseAttributes.linkerAttributes