Handle functions with 0 variables correctly in the stack view.
Give names to unnamed formal parameters (causing WatchData
warnings). Ignore exception 06ba.
Make debugger tooltip API more general, have the engines check the
correct file type, figure out the expression and context from the text
editor.
Put common functionality in watchutils.cpp. In the CDB engine, check
whether a tooltip expression is a known variable within the stack frame
context. If so, retrieve via symbol group or dumpers. Cache by function
and expression.
Reviewed-by: hjk <qtc-committer@nokia.com>
Filter debugging output correctly, some glitches. Extract
base class for debugging output to be able to intercept
debugging output for other purposes (such as disassembling).
