Support retrieving class of enum entry in ultra-light classes

idea/testData/kotlinAndJavaChecker/javaWithKotlin/OverrideInEnumEntry.java

@@ -0,0 +1,5 @@
+package test;
+
+public interface <lineMarker>OverrideInEnumEntry</lineMarker> {
+    void <lineMarker>foo</lineMarker>();
+}

idea/testData/kotlinAndJavaChecker/javaWithKotlin/OverrideInEnumEntry.kt

@@ -0,0 +1,7 @@
+package test
+
+enum class E : OverrideInEnumEntry {
+    X {
+        override fun foo() {}
+    }
+}

idea/testData/kotlinAndJavaChecker/javaWithKotlin/OverrideInEnumEntry.txt

@@ -0,0 +1 @@
+// LINE_MARKERS