Correctly handle `KtDotQualifedExpression`s with function calls as
selectors (like `foo.Bar()`). Without such handling, processing of
member invoke calls on objects was broken both
for reference shortener (causing KTIJ-26695)
and import optimizer (causing KTIJ-23407)
Also, to fix KTIJ-23407, do not ignore qualifiers with
`ImplicitInvokeCall` fake source
^KTIJ-26695 Fixed
^KTIJ-23407 Fixed
Roman Golyshev
52d6ac5ed0