Fixes: Enable ObjC support.

src/libs/cplusplus/CppDocument.cpp

@@ -109,6 +109,7 @@ Document::Document(const QString &fileName)
                                                            localFileName.size());
     _translationUnit = new TranslationUnit(_control, fileId);
     _translationUnit->setQtMocRunEnabled(true);
+    _translationUnit->setObjCEnabled(true);
     (void) _control->switchTranslationUnit(_translationUnit);
 }
 

src/libs/cplusplus/SimpleLexer.cpp

@@ -59,7 +59,9 @@ SimpleLexer::SimpleLexer()
       _skipComments(false),
       _qtMocRunEnabled(true),
       _objCEnabled(false)
-{ }
+{
+    setObjCEnabled(true);
+}
 
 SimpleLexer::~SimpleLexer()
 { }