K2 IC: refactor and optimize lookup tracking

- encapsulate semantic more into helpers
- allow lazy scopes iteration
- simplify reporting code in tower resolver
- fix some inconsistencies and wrong lookups
- remove redundant lookup recordings
- remove lookup scopes for non-star imports

The commit is a refactoring and doesn't change the behaviour of
neither IC nor CRI. Changes in the lookups are mostly due to the
previous obviously wrong lookups (see changed test data).

compiler/fir/java/src/org/jetbrains/kotlin/fir/java/enhancement/SignatureEnhancement.kt

@@ -132,8 +132,6 @@ class FirSignatureEnhancement(
                     symbol = FirEnumEntrySymbol(firElement.symbol.callableId)
                     returnTypeRef = newReturnTypeRef
                     origin = FirDeclarationOrigin.Enhancement
-                }.apply {
-                    session.lookupTracker?.recordTypeResolveAsLookup(newReturnTypeRef, this.source, null)
                 }.symbol
             }
             is FirField -> {