Fix all known "Field may be final" inspection problems 2 (IDEA-75321, IDEA-80439, IDEA-84561, IDEA-84614, IDEA-87373,IDEA-89711, IDEA-91969, IDEA-111396)
Groovy: In-place introduce parameter: delegate
Groovy: smart complete type definition body
don't manually replace toString() if it exists; generate the new one in the appropriate place instead
generateToString: shorten class references not only for java files
IDEA-69673 Generate toString() template Groovy GString style should be added
IDEA-107520 Groovy Shell: support commands in groovy shell
cleanup