There was a recent change to error early if the stdlib couldn't be
loaded when semantic functionality is required. Since
`ide::initCompilerInvocation` was ignoring the given `Action` and just
setting to `Typecheck` instead, this would cause an error even if
semantic functionality *wasn't* required.
Resolves rdar://88968608.
This change makes us treat it exactly as we do 'init'. We don't allow renaming the base name,
and don't fail if the basename doesn't match for calls.
Also:
- explicit init calls/references like `MyType.init(42)` are now reported with
'init' as a keywordBase range, rather than nothing.
- cursor info no longer reports rename as available on init/callAsFunction
calls without arguments, as there's nothing to rename in that case.
- Improved detection of when a referenced function is a call (rather than
reference) across syntactic rename, cursor-info, and indexing.
Resolves rdar://problem/60340429
NameMatcher checked if a StringLiteralExpr was a string segment in an
interpolated string by checking if the parent expression was an
InterpolatedStringLiteralExpr. That's only true pre-type-checking, and unlike
global rename, local rename uses the type-checked AST.
