[Lazarus] Testers needed: Debugger step-over issue (step over perform step in)

[Martin Frb]

This is a known issue under 64 bit Windows, when using the default 
debugger of Lazarus (gdb based / GDBMI debugger).
There have been sporadic reports that this may occur on other platforms 
too...

Anyway the symptoms of this issue are:
- During debugging you press F8 (or otherwise trigger step-over)
- The debugger will NOT step to the next line, but stop inside a 
function that was called by the line you tried to step over.

I myself have only reproduced this, in cases where the debugger stepped 
into code that has debug info. So the source of the stepped-into 
procedure is shown. If anyone has experienced stepping into assembler I 
would like feedback on this.

I have added some code, that may work around the issue. But that needs 
testing.
It is present in trunk (r60274) and fixes 2.0 branch (merge is actually 
pending, but is planned to happen before release).

Due to the lack of tests this feature is disabled by default.
Go to Tools > Option > Debugger
Find (in the property grid) "FixIncorrectStepOver" and enable it.

If the IDE detects a step-in when expecting a step over, it will try to 
solve the issue (perform a further step-over and then a step-out / a 
step out from the "begin" line of a procedure does not always work).

If you have cases where this does not work, could you please report with:
- a reproducible example (if you have)
- always (even if you have an example): a logfile
http://wiki.lazarus.freepascal.org/GDB_Debugger_Tips#Log_info_for_debug_session


See also http://forum.lazarus-ide.org/index.php?topic=44121
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