[FIR] Support when exhaustiveness for java enum

The problem appear because for java enum its entries was represented by
FirJavaField. To fix this FirEnumEntry was used

#KT-39621 Fixed

compiler/fir/tree/src/org/jetbrains/kotlin/fir/FirRenderer.kt

@@ -342,7 +342,6 @@ class FirRenderer(builder: StringBuilder, private val mode: RenderMode = RenderM
     }
 
     override fun visitEnumEntry(enumEntry: FirEnumEntry) {
-        enumEntry.annotations.renderAnnotations()
         visitCallableDeclaration(enumEntry)
         enumEntry.initializer?.let {
             print(" = ")