extract method: find all vars inside to check for name conflicts
extract method: allow to choose return type from hierarchy (IDEA-79995)
testdata fixed (too wide fonts on linux splitted components into multi rows!)
extract method dialog: hide generate annotations checkbox if unknown nullness
Cleanup (formatting)
Hg old push dialog removed
IDEA-133562 Force push warning: add "don't warn again for this branch" checkbox

* branchName added in HgTarget to improve equals method;
* confirmation should be shown if targets are different or if not remembered;
* checkBox should not be shown for different targets;
* annotations added