IDEA-131247 Debugger: changes in watches made out of debugger session are not saved

(cherry picked from commit 6b26ee46cefd67696c3656f1807f7a05b864a4ea)
IDEA-130637 Find: "Context" chooser combobox cut-off
IDEA-131272 check if user edits something before close a dialog
Merge remote-tracking branch 'origin/139' into 139