LCL: Fix window RestoredLeft/Top values. Issue #8576, patch from Yuichiro Takahashi.

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46292 4005530d-fff6-0310-9dd1-cebe43e6787f
Object Inspector: use Constraints.MinHeight for InfoPanel. It cannot be resized any more if Height becomes 0.

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46293 4005530d-fff6-0310-9dd1-cebe43e6787f