testMergeMessageSetExtensionWithFlag  531 third_party/protobuf/java/src/test/java/com/google/protobuf/WireFormatTest.java     testMergeMessageSetExtensionWithFlag(true);
testMergeMessageSetExtensionWithFlag  535 third_party/protobuf/java/src/test/java/com/google/protobuf/WireFormatTest.java     testMergeMessageSetExtensionWithFlag(false);