C++: fix follow-symbol-under-cursor for #import <xyz>

Task-number: QTCREATORBUG-12254
Change-Id: I4179c78f3ce6bf2236f8375da1765122a974118c
Reviewed-by: Eike Ziller <eike.ziller@digia.com>
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

src/libs/cplusplus/SimpleLexer.cpp

@@ -133,6 +133,8 @@ Token SimpleLexer::tokenAt(const QString &text,
     features.qtMocRunEnabled = qtMocRunEnabled;
     features.qtEnabled = qtMocRunEnabled;
     features.qtKeywordsEnabled = qtMocRunEnabled;
+    features.objCEnabled = qtMocRunEnabled;
+    features.cxx11Enabled = qtMocRunEnabled;
     SimpleLexer tokenize;
     tokenize.setLanguageFeatures(features);
     const QList<Token> tokens = tokenize(text, state);

src/plugins/cppeditor/cppfollowsymbolundercursor.cpp

@@ -467,6 +467,8 @@ BaseTextEditorWidget::Link FollowSymbolUnderCursor::findLink(const QTextCursor &
     features.qtEnabled = true;
     features.qtKeywordsEnabled = true;
     features.qtMocRunEnabled = true;
+    features.objCEnabled = true;
+    features.cxx11Enabled = true;
 
     SimpleLexer tokenize;
     tokenize.setLanguageFeatures(features);