[FIR] Add enum entry to body resolve context containers

This fixes processing of annotations on enum entries.
Before, the check in BodyResolveContext.forAnnotation would set the
tower data mode to CLASS_HEADER_ANNOTATIONS because no containers were
present.
This would lead to some tower data elements like nested classifiers
missing, which would lead to false positive unresolved references.

#KT-63761 Fixed

analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/util/ContextCollector.kt

@@ -441,7 +441,7 @@ private class ContextCollectorVisitor(
         onActiveBody {
             enumEntry.lazyResolveToPhase(FirResolvePhase.BODY_RESOLVE)
 
-            context.forEnumEntry {
+            context.withEnumEntry(enumEntry) {
                 dumpContext(enumEntry, ContextKind.BODY)
 
                 onActive {