Extract TerminalToolWindow panel, encapsulate logic there, implement UISettingsListener to be subscribed on ui settings change

don't build groovy stubs where they're not needed, make getParent consistent for stub and AST substrates

I've corrected capitalization of the text and move it to RefactoringBundle.

This way it's safer to launch time-consuming dependent tasks
(e.g. searching for code duplicates) synchonously since under
WriteAction they might cause deadlock.

They were caused by the fact that we first replace selected fragment
with method call and then use invalided elements of the same fragment
to find its duplicates.
I split ExtractMethodHelper#processDuplicates() into two methods:
collectDuplicates() that finds duplicates before the substitution is
performed and replaceDuplicatesWithPrompt() that handles user
notification and replacing found occurrences afterwards.
The same way this refactoring is implemented for Java sources
(see ExtractMethodHandler.invokeOnElements()).

Conflicts:
	platform/util/resources/misc/registry.properties

simplify and speed up JavaAllOverridingMethodsSearcher by reusing overriding methods search checks whether a class has methods with a given name

- Remove cyclicity from ComponentListFocusTraversalPolicy and rely on "focus cycle root" property of a container instead.
- Where a focus traversal cycle should not be closed, use "focus traversal policy provider".
- Focus cycle root is a focus policy provider by default.

extract superclass: hide implements base type from chooser for anonymous classes; fixed implements/extends list in the generated superclass

(EA-82661 - IAE: PsiImplUtil.setName)