IDE: fix a variable name

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42553 4005530d-fff6-0310-9dd1-cebe43e6787f
IDE: formatting

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42554 4005530d-fff6-0310-9dd1-cebe43e6787f
LCL: Clear also Images list for icons. Issue #24937, patch from ChrisF

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42555 4005530d-fff6-0310-9dd1-cebe43e6787f