QLatin1String refactorings.

Factor out watch function, improve debug output.

Reviewed-by: hjk

external application

Details:  Mac gdb produces MI-style output for the non-MI-style command

auto-dereferencing contents

Task:     246286

This reverts commit dcb43b04.

This reverts commit b99f3b61.

Details:  accounted for >60% startup time in some cases and was
presumably only needed as help for a fallback when setting breakpoints
with gdb 6.5 on Windows

rely on the inferior's pid being available. consequently, remove the
bizarre findChild stuff.

fixes interrupting processes with some versions of gdb

Details:  That works with a core file, too. The "real" dumpers require a
live process as they use gdb's "call"

includes complete refactoring of ConsoleProcess.