Creator: How to analyze parsing fail?

[Asperamanca]

Sometimes, Creator just doesn't want to parse a certain symbol. I create a variable of a know type, and I do not get anything from the parser - the variable is not highlighted where it is used, typing . or -> after the symbol name does not yield a list of useful things to call.

Example:
@CTsco_GraphicsLinePlot* pPlot = new CTsco_GraphicsLinePlot();
pPlot->// no parser help here!@

My standard procedure in those cases is

• Is the type recognized? Are the proper headers included?
• Does it compile? Do I get any warnings?
• Update code model (from Tools->C++)
• Restart Creator

It's enough in 90 % of cases. But how can I further investigate the problem in the remaining 10 %?