Debugger: Only update executable from core file when needed
Debugger: Only update executable from core file when needed

Conditions:
1. Not empty. It erases the existing executable for no reason.
2. Not Windows -> Windows doesn't produce core dumps, so the path inside it is
   unlikely to match anything on the host.

Change-Id: Ib3cd1ae278d8bc9f6ad326821319ca3deda44800
Reviewed-by: Thomas Otto <5a1baadea3c191b9c1094aa74d1c075d57c23a02@zbh.uni-hamburg.de>
Reviewed-by: hjk <f81b91af79013637d070c18d38a75b90eaae8ba3@nokiamail.com>

farseerri/git_code,kuba1/qtcreator,amyvmiwei/qt-creator,amyvmiwei/qt-creator,AltarBeastiful/qt-creator,AltarBeastiful/qt-creator,AltarBeastiful/qt-creator,martyone/sailfish-qtcreator,amyvmiwei/qt-creator,farseerri/git_code,xianian/qt-creator,Distrotech/qtcreator,maui-packages/qt-creator,danimo/qt-creator,xianian/qt-creator,Distrotech/qtcreator,martyone/sailfish-qtcreator,xianian/qt-creator,AltarBeastiful/qt-creator,danimo/qt-creator,maui-packages/qt-creator,farseerri/git_code,AltarBeastiful/qt-creator,xianian/qt-creator,danimo/qt-creator,kuba1/qtcreator,maui-packages/qt-creator,xianian/qt-creator,AltarBeastiful/qt-creator,martyone/sailfish-qtcreator,farseerri/git_code,farseerri/git_code,danimo/qt-creator,danimo/qt-creator,amyvmiwei/qt-creator,xianian/qt-creator,danimo/qt-creator,martyone/sailfish-qtcreator,Distrotech/qtcreator,xianian/qt-creator,martyone/sailfish-qtcreator,farseerri/git_code,maui-packages/qt-creator,martyone/sailfish-qtcreator,amyvmiwei/qt-creator,martyone/sailfish-qtcreator,danimo/qt-creator,amyvmiwei/qt-creator,kuba1/qtcreator,AltarBeastiful/qt-creator,xianian/qt-creator,farseerri/git_code,xianian/qt-creator,maui-packages/qt-creator,farseerri/git_code,kuba1/qtcreator,kuba1/qtcreator,martyone/sailfish-qtcreator,kuba1/qtcreator,Distrotech/qtcreator,kuba1/qtcreator,danimo/qt-creator,amyvmiwei/qt-creator,amyvmiwei/qt-creator,Distrotech/qtcreator,maui-packages/qt-creator,AltarBeastiful/qt-creator,danimo/qt-creator,Distrotech/qtcreator,martyone/sailfish-qtcreator,maui-packages/qt-creator,kuba1/qtcreator,kuba1/qtcreator,Distrotech/qtcreator