Clang: Provide highlighting for identifier under cursor

Change-Id: I80ffe23cbcc84ab7323124581d9dd6afbe974fd0
Reviewed-by: Marco Bubke <marco.bubke@qt.io>

src/tools/clangbackend/ipcsource/cursor.cpp

@@ -118,6 +118,46 @@ bool Cursor::isLocalVariable() const
     }
 }
 
+bool Cursor::isReference() const
+{
+    return clang_isReference(kind());
+}
+
+bool Cursor::isExpression() const
+{
+    return clang_isExpression(kind());
+}
+
+bool Cursor::isFunctionLike() const
+{
+    const CXCursorKind k = kind();
+    return k == CXCursor_FunctionDecl
+        || k == CXCursor_CXXMethod
+        || k == CXCursor_FunctionTemplate;
+}
+
+bool Cursor::isConstructorOrDestructor() const
+{
+    const CXCursorKind k = kind();
+    return k == CXCursor_Constructor
+        || k == CXCursor_Destructor;
+}
+
+bool Cursor::isTemplateLike() const
+{
+    switch (kind()) {
+    case CXCursor_ClassTemplate:
+    case CXCursor_ClassTemplatePartialSpecialization:
+        return  true;
+    case CXCursor_ClassDecl:
+        return specializedCursorTemplate().isValid();
+    default:
+        return false;
+    }
+
+    Q_UNREACHABLE();
+}
+
 bool Cursor::hasFinalFunctionAttribute() const
 {
     bool hasFinal = false;
@@ -208,6 +248,11 @@ Type Cursor::nonPointerTupe() const
     return typeResult;
 }
 
+Cursor Cursor::specializedCursorTemplate() const
+{
+    return clang_getSpecializedCursorTemplate(cxCursor);
+}
+
 SourceLocation Cursor::sourceLocation() const
 {
     return clang_getCursorLocation(cxCursor);