Clang: Integrate highlighting results from backend

Change-Id: I2c3fb69aabfe075bde76d63eafc2ca370f17493c
Reviewed-by: Marco Bubke <marco.bubke@theqtcompany.com>

src/tools/clangbackend/ipcsource/clangtranslationunit.cpp

@@ -85,6 +85,7 @@ public:
     uint documentRevision = 0;
     bool needsToBeReparsed = false;
     bool hasNewDiagnostics = true;
+    bool hasNewHighlightingInformations = true;
     bool isUsedByCurrentEditor = false;
     bool isVisibleInEditor = false;
 };
@@ -239,6 +240,11 @@ bool TranslationUnit::hasNewDiagnostics() const
     return d->hasNewDiagnostics;
 }
 
+bool TranslationUnit::hasNewHighlightingInformations() const
+{
+    return d->hasNewHighlightingInformations;
+}
+
 DiagnosticSet TranslationUnit::diagnostics() const
 {
     d->hasNewDiagnostics = false;
@@ -268,6 +274,7 @@ void TranslationUnit::setDirtyIfDependencyIsMet(const Utf8String &filePath)
     if (d->dependedFilePaths.contains(filePath) && isMainFileAndExistsOrIsOtherFile(filePath)) {
         d->needsToBeReparsed = true;
         d->hasNewDiagnostics = true;
+        d->hasNewHighlightingInformations = true;
     }
 }
 
@@ -302,6 +309,13 @@ Cursor TranslationUnit::cursor() const
     return clang_getTranslationUnitCursor(cxTranslationUnit());
 }
 
+HighlightingInformations TranslationUnit::highlightingInformations() const
+{
+    d->hasNewHighlightingInformations = false;
+
+    return highlightingInformationsInRange(cursor().sourceRange());
+}
+
 HighlightingInformations TranslationUnit::highlightingInformationsInRange(const SourceRange &range) const
 {
     CXToken *cxTokens = 0;