Classify Objective-C++ as Objective-C for clang-format's purposes

Author: kkaefer

clang-format/ClangFormatCommand.mm

@@ -30,7 +30,7 @@ void updateOffsets(std::vector<size_t>& offsets, NSMutableArray<NSString*>* line
                UTTypeEqual(uti, kUTTypeCHeader) || UTTypeEqual(uti, kUTTypeCSource)) {
         return clang::format::FormatStyle::LK_Cpp;
     } else if (UTTypeEqual(uti, kUTTypeObjectiveCSource) ||
-               UTTypeEqual(uti, kUTTypeObjectiveCSource)) {
+               UTTypeEqual(uti, kUTTypeObjectiveCPlusPlusSource)) {
         return clang::format::FormatStyle::LK_ObjC;
     } else if (UTTypeEqual(uti, kUTTypeJavaSource)) {
         return clang::format::FormatStyle::LK_Java;