data: stop indexing of files with fatal errors and store them as incomplete (issue 358)

* avoid AST traversial for CXX translation units with fatal errors
* save all files within those translation units as incomplete
* show number of complete files in finished indexing dialog and overview stats
* display incomplete files hatched in graph view
* display incomplete file titles hatched in code view
* mention file incompleteness in tooltips
* removed derived Indexer classes and set ParserType via template parameter instead
* moved getSourceFileFromCDB from IndexerCxxCdb to IndexerCommandCxxCdb

bug id = 358

src/lib/data/parser/ParserClient.h

@@ -28,9 +28,6 @@ public:
 	ParserClient();
 	virtual ~ParserClient();
 
-	virtual void startParsingFile() = 0;
-	virtual void finishParsingFile() = 0;
-
 	virtual Id recordSymbol(
 		const NameHierarchy& symbolName, SymbolKind symbolKind,
 		AccessKind access, DefinitionKind definitionKind) = 0;
@@ -53,6 +50,13 @@ public:
 	virtual void onLocalSymbolParsed(const std::string& name, const ParseLocation& location) = 0;
 	virtual void onFileParsed(const FileInfo& fileInfo) = 0;
 	virtual void onCommentParsed(const ParseLocation& location) = 0;
+
+	void onErrorParsed(const ParseLocation& location, const std::string& message, bool fatal, bool indexed);
+
+	bool hasFatalErrors() const;
+
+protected:
+	bool m_hasFatalErrors;
 };
 
 #endif // PARSER_CLIENT_H