Clang: Update includes after reparsing

Change-Id: I783cc0b536f880ce736cddf530f0363691cd6e77
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>

src/tools/clangbackend/ipcsource/translationunit.cpp

@@ -287,6 +287,8 @@ void TranslationUnit::reparseTranslationUnit() const
                                  unsavedFiles().cxUnsavedFiles(),
                                  clang_defaultReparseOptions(d->translationUnit));
 
+    updateIncludeFilePaths();
+
     d->needsToBeReparsed = false;
 }