Debugger: Add facility to check float values in auto tests

Change-Id: Iee50dd4b43bdc12fac329d33e158fa759bee4d28
Reviewed-by: hjk <hjk121@nokiamail.com>
Debugger: Split <complex.h> auto test into GDB/LLDB specific

Results are different, but ok.

Change-Id: I5550dd4b43bdc12fac329d33e158fa759bee4d28
Reviewed-by: hjk <hjk121@nokiamail.com>
Debugger: Fix libc++ std::{unique,shared}_ptr dumpers

Change-Id: I9efb22543bf31f43381e57fb0acf4aeb15e8a293
Reviewed-by: hjk <hjk121@nokiamail.com>