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_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)
 		}