JVM IR: fix incorrect IR types in inner and enum class lowerings

In InnerClassesLowering, the type of the "outer$0" expression should be
the outer class, not the inner class. In EnumClassLowering, the type of
the enum entry is the type of its class or the type of the enum class,
but not the type of initialierExpression which is always Unit

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/lower/InnerClassesLowering.kt

@@ -141,14 +141,7 @@ class InnerClassesLowering(val context: BackendContext) : ClassLoweringPass {
                         }
 
                         val outerThisField = context.declarationFactory.getOuterThisField(innerClass)
-                        irThis = IrGetFieldImpl(
+                        irThis = IrGetFieldImpl(startOffset, endOffset, outerThisField.symbol, outerThisField.type, irThis, origin)
-                            startOffset,
-                            endOffset,
-                            outerThisField.symbol,
-                            innerClass.defaultType,
-                            irThis,
-                            origin
-                        )
 
                         val outer = innerClass.parent
                         innerClass = outer as? IrClass ?:

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/lower/EnumClassLowering.kt

@@ -195,13 +195,14 @@ private class EnumClassLowering(val context: JvmBackendContext) : ClassLoweringP
             return enumEntryClass
         }
 
-        private fun createFieldForEnumEntry(enumEntry: IrEnumEntry): IrField {
+        private fun createFieldForEnumEntry(enumEntry: IrEnumEntry): IrField =
-            return context.declarationFactory.getFieldForEnumEntry(enumEntry, enumEntry.initializerExpression!!.type).also {
+            context.declarationFactory.getFieldForEnumEntry(
+                enumEntry, (enumEntry.correspondingClass ?: enumEntry.parentAsClass).defaultType
+            ).also {
                 it.initializer = IrExpressionBodyImpl(enumEntry.initializerExpression!!)
                 enumEntryFields.add(it)
                 enumEntriesByField[it] = enumEntry
             }
-        }
 
         private fun setupSynthesizedEnumClassMembers() {
             val irField = createSyntheticValuesFieldDeclaration()

compiler/testData/codegen/box/classes/kt2566_2.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JVM_IR
 open class A {
     open val foo: String = "OK"
 }

compiler/testData/codegen/box/super/innerClassLabeledSuper.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JVM_IR
 interface BK {
     fun foo(): String
     fun bar(): String