Exporting MakeBazelTarget() in testing.go

Since we are putting conversion tests in the same
package as the module being converted from now on

Test: m bp2build
Change-Id: Ied53589d497fef70bfa11d8f6067459c9a50cd72
diff --git a/bp2build/android_app_conversion_test.go b/bp2build/android_app_conversion_test.go
index a37af12..e112be3 100644
--- a/bp2build/android_app_conversion_test.go
+++ b/bp2build/android_app_conversion_test.go
@@ -47,7 +47,7 @@
 }
 `,
 		ExpectedBazelTargets: []string{
-			makeBazelTarget("android_binary", "TestApp", AttrNameToString{
+			MakeBazelTarget("android_binary", "TestApp", AttrNameToString{
 				"srcs":           `["app.java"]`,
 				"manifest":       `"AndroidManifest.xml"`,
 				"resource_files": `["res/res.png"]`,
@@ -79,7 +79,7 @@
 }
 `,
 		ExpectedBazelTargets: []string{
-			makeBazelTarget("android_binary", "TestApp", AttrNameToString{
+			MakeBazelTarget("android_binary", "TestApp", AttrNameToString{
 				"srcs":     `["app.java"]`,
 				"manifest": `"manifest/AndroidManifest.xml"`,
 				"resource_files": `[
@@ -119,7 +119,7 @@
 }
 `,
 		ExpectedBazelTargets: []string{
-			makeBazelTarget("android_binary", "TestApp", AttrNameToString{
+			MakeBazelTarget("android_binary", "TestApp", AttrNameToString{
 				"srcs": `select({
         "//build/bazel/platforms/arch:arm": ["arm.java"],
         "//build/bazel/platforms/arch:x86": ["x86.java"],