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_gui/qt/view/graphElements/QtGraphNode.cpp

@@ -397,7 +397,7 @@ void QtGraphNode::setStyle(const GraphViewStyle::NodeStyle& style)
 	if (style.hasHatching)
 	{
 		QtDeviceScaledPixmap pattern((ResourcePaths::getGuiPath() + "graph_view/images/pattern.png").c_str());
-		pattern.scaleToHeight(10);
+		pattern.scaleToHeight(12);
 		QPixmap pixmap = utility::colorizePixmap(pattern.pixmap(), style.color.hatching.c_str());
 
 		pen.setWidth(0);

src/lib_gui/qt/view/graphElements/QtGraphNodeData.cpp

@@ -19,7 +19,11 @@ QtGraphNodeData::QtGraphNodeData(const Node* data, const std::string& name, bool
 	this->setName(name);
 
 	std::string toolTip = data->getReadableTypeString();
-	if (!data->isDefined() && !data->isType(Node::NODE_NON_INDEXED))
+	if (!data->isDefined() && data->isType(Node::NODE_FILE))
+	{
+		toolTip = "incomplete " + toolTip;
+	}
+	else if (!data->isDefined() && !data->isType(Node::NODE_NON_INDEXED))
 	{
 		toolTip = "non-indexed " + toolTip;
 	}