PY-12179 Pull up: do not show dialog when there is nothing to pull up
fix double icon in available plugins table
diff: fix EditSource action description on toolbar
PY-12173 Extract Superclass: warn about conflicting names
Merge remote-tracking branch 'origin/master'
Disable fullscreen for the sheet parent
lazy inference of closure parameters' types
some renames and cleanups
typo
simplify code
language level is not @NotNull
optimize resolve.
In some cases resolve() works faster than resolveGenerics (for example in LiteralClassType) and does not need to infer type parameters which can are needed only after some checks
@Nullable
new test