bp2build: Unexport GenerateBazelTargetsForDir.

Resolving a comment from aosp/1595678

Test: build/bazel/scripts/milestone-2/demo.sh
Change-Id: Ia7aba2b149fc09615fbafee67838632c71320f1b
diff --git a/bp2build/build_conversion.go b/bp2build/build_conversion.go
index fcad686..41ad409 100644
--- a/bp2build/build_conversion.go
+++ b/bp2build/build_conversion.go
@@ -208,12 +208,6 @@
 	return buildFileToTargets, metrics
 }
 
-// Helper method for tests to easily access the targets in a dir.
-func GenerateBazelTargetsForDir(codegenCtx CodegenContext, dir string) BazelTargets {
-	bazelTargetsMap, _ := GenerateBazelTargets(codegenCtx)
-	return bazelTargetsMap[dir]
-}
-
 // Helper method to trim quotes around strings.
 func trimQuotes(s string) string {
 	if s == "" {
diff --git a/bp2build/build_conversion_test.go b/bp2build/build_conversion_test.go
index fce6433..aa4fc1d 100644
--- a/bp2build/build_conversion_test.go
+++ b/bp2build/build_conversion_test.go
@@ -204,7 +204,7 @@
 		android.FailIfErrored(t, errs)
 
 		codegenCtx := NewCodegenContext(config, *ctx.Context, QueryView)
-		bazelTargets := GenerateBazelTargetsForDir(codegenCtx, dir)
+		bazelTargets := generateBazelTargetsForDir(codegenCtx, dir)
 		if actualCount, expectedCount := len(bazelTargets), 1; actualCount != expectedCount {
 			t.Fatalf("Expected %d bazel target, got %d", expectedCount, actualCount)
 		}
@@ -262,7 +262,7 @@
 		}
 
 		codegenCtx := NewCodegenContext(config, *ctx.Context, Bp2Build)
-		bazelTargets := GenerateBazelTargetsForDir(codegenCtx, dir)
+		bazelTargets := generateBazelTargetsForDir(codegenCtx, dir)
 
 		if actualCount, expectedCount := len(bazelTargets), 1; actualCount != expectedCount {
 			t.Errorf("Expected %d bazel target, got %d", expectedCount, actualCount)
@@ -421,7 +421,7 @@
 		android.FailIfErrored(t, errs)
 
 		codegenCtx := NewCodegenContext(config, *ctx.Context, Bp2Build)
-		bazelTargets := GenerateBazelTargetsForDir(codegenCtx, dir)
+		bazelTargets := generateBazelTargetsForDir(codegenCtx, dir)
 		if actualCount := len(bazelTargets); actualCount != testCase.expectedBazelTargetCount {
 			t.Fatalf("Expected %d bazel target, got %d", testCase.expectedBazelTargetCount, actualCount)
 		}
@@ -912,7 +912,7 @@
 		}
 
 		codegenCtx := NewCodegenContext(config, *ctx.Context, Bp2Build)
-		bazelTargets := GenerateBazelTargetsForDir(codegenCtx, checkDir)
+		bazelTargets := generateBazelTargetsForDir(codegenCtx, checkDir)
 		if actualCount, expectedCount := len(bazelTargets), len(testCase.expectedBazelTargets); actualCount != expectedCount {
 			t.Errorf("%s: Expected %d bazel target, got %d", testCase.description, expectedCount, actualCount)
 		} else {
@@ -1127,7 +1127,7 @@
 		android.FailIfErrored(t, errs)
 
 		codegenCtx := NewCodegenContext(config, *ctx.Context, Bp2Build)
-		bazelTargets := GenerateBazelTargetsForDir(codegenCtx, dir)
+		bazelTargets := generateBazelTargetsForDir(codegenCtx, dir)
 		if actualCount := len(bazelTargets); actualCount != 1 {
 			t.Fatalf("%s: Expected 1 bazel target, got %d", testCase.description, actualCount)
 		}
@@ -1215,7 +1215,7 @@
 		android.FailIfErrored(t, errs)
 
 		codegenCtx := NewCodegenContext(config, *ctx.Context, Bp2Build)
-		bazelTargets := GenerateBazelTargetsForDir(codegenCtx, dir)
+		bazelTargets := generateBazelTargetsForDir(codegenCtx, dir)
 		if actualCount := len(bazelTargets); actualCount != testCase.expectedCount {
 			t.Fatalf("%s: Expected %d bazel target, got %d", testCase.description, testCase.expectedCount, actualCount)
 		}
diff --git a/bp2build/cc_library_headers_conversion_test.go b/bp2build/cc_library_headers_conversion_test.go
index b2d8941..5bf5c80 100644
--- a/bp2build/cc_library_headers_conversion_test.go
+++ b/bp2build/cc_library_headers_conversion_test.go
@@ -203,7 +203,7 @@
 			checkDir = testCase.dir
 		}
 		codegenCtx := NewCodegenContext(config, *ctx.Context, Bp2Build)
-		bazelTargets := GenerateBazelTargetsForDir(codegenCtx, checkDir)
+		bazelTargets := generateBazelTargetsForDir(codegenCtx, checkDir)
 		if actualCount, expectedCount := len(bazelTargets), len(testCase.expectedBazelTargets); actualCount != expectedCount {
 			t.Errorf("%s: Expected %d bazel target, got %d", testCase.description, expectedCount, actualCount)
 		} else {
diff --git a/bp2build/cc_object_conversion_test.go b/bp2build/cc_object_conversion_test.go
index 816edb8..f094102 100644
--- a/bp2build/cc_object_conversion_test.go
+++ b/bp2build/cc_object_conversion_test.go
@@ -167,7 +167,7 @@
 		}
 
 		codegenCtx := NewCodegenContext(config, *ctx.Context, Bp2Build)
-		bazelTargets := GenerateBazelTargetsForDir(codegenCtx, dir)
+		bazelTargets := generateBazelTargetsForDir(codegenCtx, dir)
 		if actualCount, expectedCount := len(bazelTargets), len(testCase.expectedBazelTargets); actualCount != expectedCount {
 			fmt.Println(bazelTargets)
 			t.Errorf("%s: Expected %d bazel target, got %d", testCase.description, expectedCount, actualCount)
diff --git a/bp2build/sh_conversion_test.go b/bp2build/sh_conversion_test.go
index 3e15dfc..2aa373c 100644
--- a/bp2build/sh_conversion_test.go
+++ b/bp2build/sh_conversion_test.go
@@ -116,7 +116,7 @@
 			checkDir = testCase.dir
 		}
 		codegenCtx := NewCodegenContext(config, *ctx.Context, Bp2Build)
-		bazelTargets := GenerateBazelTargetsForDir(codegenCtx, checkDir)
+		bazelTargets := generateBazelTargetsForDir(codegenCtx, checkDir)
 		if actualCount, expectedCount := len(bazelTargets), len(testCase.expectedBazelTargets); actualCount != expectedCount {
 			t.Errorf("%s: Expected %d bazel target, got %d", testCase.description, expectedCount, actualCount)
 		} else {
diff --git a/bp2build/testing.go b/bp2build/testing.go
index 2e59999..9774915 100644
--- a/bp2build/testing.go
+++ b/bp2build/testing.go
@@ -175,3 +175,9 @@
 		ctx.CreateBazelTargetModule(customBazelModuleFactory, myProtoLibraryProps, attrs)
 	}
 }
+
+// Helper method for tests to easily access the targets in a dir.
+func generateBazelTargetsForDir(codegenCtx CodegenContext, dir string) BazelTargets {
+	buildFileToTargets, _ := GenerateBazelTargets(codegenCtx)
+	return buildFileToTargets[dir]
+}