This requires plumbing a Fe10AnalysisContext through to the
KtFe10AnnotationsList, so that the context's module descriptor and
KotlinBuiltIns instance can be used to look up types correctly.
This eliminates the difference between the FIR and FE1.0 AA
implementations with regards to annotation spread argument handling.
This changes FirAnnotationValueConverter to no longer rely on PSI
information when projecting annotation parameter information to AA.
For annotations defined in Java, including many meta-annotations, PSI
information is not available for the annotation. This caused those
annotation values to be projected as KtUnsupportedAnnotationValue.
Instead of using PSI information, this changes
FirAnnotationValueConverter to use the tree structure instead. Spread
and named parameter arguments are spliced into the parameter list of
their surrounding vararg calls, meaning that callers see the expected
structure. (See the varargSpreadParameter.kt test file for an example.)
This test ensures that annotations on other annotations are properly
handled, even if those annotations are defined in Java rather than in
Kotlin.
Note that this functionality only works on FIR, and currently has bugs
that mean the result is an error type. Follow-on changes will fix the
error-type bug, and restore proper functionality for FIR.
Jinseong Jeon