ExpressionUtils#getQualifierOrThis -> getEffectiveQualifier, nullable now (cannot construct this expression for outer anonymous class)

Fixes EA-140652 - assert: JavaParserUtil.parseFragment

ReplaceWithMutableCollectionIntention: added intention to convert immutable collections to mutable ones (IDEA-196755)

It supports an old version of the framework and has <50 downloads per update from the plugin repo.

It happens partly because we still represent quotes there as individual tokens
of type FSTRING_TEXT due to the way the recovering lexer for f-strings is
implemented, thus we treat a quote and a subsequent bracket or whitespace as
two different lexemes.

[groovy] use GrReferenceExpression#getStaticReference (because it's caching) in factory.kt#createDescriptor

Add WrapConstant annotation for proper conversion to human-readable values in external formats (Json, editorconfig)

pty: replace withWindowsAnsiColorEnabled with "pty4j.win.disable.ansi.in.console.mode" system property (IDEA-CR-46256)

[groovy] delegate GrClassReferenceType#getParameterCount to underlying reference element' type argument list

Requested by yole in https://youtrack.jetbrains.com/issue/IDEA-202809#focus=streamItem-27-3409279.0-0