Fix false pos in bp2build-prog due to prebulits

The prebuilt_ prefix was removed before writing converted modules, which
causes false positives when a prebuilt and from source module exist with
the same name but only one has been converted

Test: b run //build/bazel/scripts/bp2build_progress:bp2build_progress \
    -- report -m core-lambda-stubs-for-system-modules
Change-Id: Id00099780fb6af9fffcf745b509116a66bac8756

bp2build/conversion.go

@@ -48,7 +48,11 @@ func soongInjectionFiles(cfg android.Config, metrics CodegenMetrics) ([]BazelFil
 	}
 	files = append(files, newFile("apex_toolchain", "constants.bzl", apexToolchainVars))
 
-	files = append(files, newFile("metrics", "converted_modules.txt", strings.Join(metrics.Serialize().ConvertedModules, "\n")))
+	if buf, err := json.MarshalIndent(metrics.convertedModuleWithType, "", "  "); err != nil {
+		return []BazelFile{}, err
+	} else {
+		files = append(files, newFile("metrics", "converted_modules.json", string(buf)))
+	}
 
 	convertedModulePathMap, err := json.MarshalIndent(metrics.convertedModulePathMap, "", "\t")
 	if err != nil {

bp2build/conversion_test.go

@@ -134,7 +134,7 @@ func TestCreateBazelFiles_Bp2Build_CreatesDefaultFiles(t *testing.T) {
 		},
 		{
 			dir:      "metrics",
-			basename: "converted_modules.txt",
+			basename: "converted_modules.json",
 		},
 		{
 			dir:      "metrics",

bp2build/metrics.go

@@ -9,11 +9,17 @@ import (
 	"android/soong/android"
 	"android/soong/shared"
 	"android/soong/ui/metrics/bp2build_metrics_proto"
+
 	"google.golang.org/protobuf/proto"
 
 	"github.com/google/blueprint"
 )
 
+type moduleInfo struct {
+	Name string `json:"name"`
+	Type string `json:"type"`
+}
+
 // CodegenMetrics represents information about the Blueprint-to-BUILD
 // conversion process.
 // Use CreateCodegenMetrics() to get a properly initialized instance
@@ -30,6 +36,9 @@ type CodegenMetrics struct {
 	// Map of converted modules and paths to call
 	// NOTE: NOT in the .proto
 	convertedModulePathMap map[string]string
+
+	// Name and type of converted modules
+	convertedModuleWithType []moduleInfo
 }
 
 func CreateCodegenMetrics() CodegenMetrics {
@@ -191,6 +200,10 @@ func (metrics *CodegenMetrics) AddConvertedModule(m blueprint.Module, moduleType
 	// Undo prebuilt_ module name prefix modifications
 	moduleName := android.RemoveOptionalPrebuiltPrefix(m.Name())
 	metrics.serialized.ConvertedModules = append(metrics.serialized.ConvertedModules, moduleName)
+	metrics.convertedModuleWithType = append(metrics.convertedModuleWithType, moduleInfo{
+		moduleName,
+		moduleType,
+	})
 	metrics.convertedModulePathMap[moduleName] = "//" + dir
 	metrics.serialized.ConvertedModuleTypeCount[moduleType] += 1
 	metrics.serialized.TotalModuleTypeCount[moduleType] += 1