KT-7007 Go to declaration doesn't work inside enum class

#KT-7007 fixed

idea/ide-common/src/org/jetbrains/kotlin/resolve/lazy/ElementResolver.java

@@ -81,12 +81,14 @@ public abstract class ElementResolver {
                 JetProperty.class,
                 JetParameter.class,
                 JetDelegationSpecifierList.class,
+                JetInitializerList.class,
                 JetImportDirective.class,
                 JetAnnotationEntry.class,
                 JetTypeParameter.class,
                 JetTypeConstraint.class,
                 JetPackageDirective.class,
-                JetCodeFragment.class);
+                JetCodeFragment.class
+        );
 
         if (elementOfAdditionalResolve != null && !(elementOfAdditionalResolve instanceof JetParameter)) {
             if (elementOfAdditionalResolve instanceof JetPackageDirective) {
@@ -158,7 +160,10 @@ public abstract class ElementResolver {
             propertyAdditionalResolve(resolveSession, (JetProperty) resolveElement, trace, file, statementFilter);
         }
         else if (resolveElement instanceof JetDelegationSpecifierList) {
-            delegationSpecifierAdditionalResolve(resolveSession, (JetDelegationSpecifierList) resolveElement, trace, file);
+            delegationSpecifierAdditionalResolve(resolveSession, (JetClassOrObject) resolveElement.getParent(), trace, file);
+        }
+        else if (resolveElement instanceof JetInitializerList) {
+            delegationSpecifierAdditionalResolve(resolveSession, (JetEnumEntry) resolveElement.getParent(), trace, file);
         }
         else if (resolveElement instanceof JetImportDirective) {
             JetImportDirective importDirective = (JetImportDirective) resolveElement;
@@ -341,9 +346,10 @@ public abstract class ElementResolver {
 
     private void delegationSpecifierAdditionalResolve(
             ResolveSession resolveSession,
-            JetDelegationSpecifierList specifier, BindingTrace trace, JetFile file) {
-
-        JetClassOrObject classOrObject = (JetClassOrObject) specifier.getParent();
+            JetClassOrObject classOrObject,
+            BindingTrace trace,
+            JetFile file
+    ) {
         LazyClassDescriptor descriptor = (LazyClassDescriptor) resolveSession.resolveToDescriptor(classOrObject);
 
         // Activate resolving of supertypes

idea/testData/inspections/unusedSymbol/property/inEnumSupercall.kt

@@ -0,0 +1,11 @@
+// KT-7007 Go to declaration doesn't work inside enum class
+
+val TOP_LEVEL = 5
+
+enum class MyEnum(value: Int) {
+    VALUE : MyEnum(TOP_LEVEL)
+}
+
+fun main(args: Array<String>) {
+    MyEnum.VALUE
+}

idea/testData/resolve/references/InEnumEntry.kt

@@ -0,0 +1,9 @@
+package test
+
+val TOP_LEVEL = 5
+
+enum class MyEnum(value: Int) {
+    VALUE : MyEnum(<caret>TOP_LEVEL)
+}
+
+// REF: (test).TOP_LEVEL

idea/tests/org/jetbrains/kotlin/idea/resolve/ReferenceResolveTestGenerated.java

@@ -209,6 +209,12 @@ public class ReferenceResolveTestGenerated extends AbstractReferenceResolveTest
         doTest(fileName);
     }
 
+    @TestMetadata("InEnumEntry.kt")
+    public void testInEnumEntry() throws Exception {
+        String fileName = JetTestUtils.navigationMetadata("idea/testData/resolve/references/InEnumEntry.kt");
+        doTest(fileName);
+    }
+
     @TestMetadata("InFunctionParameterType.kt")
     public void testInFunctionParameterType() throws Exception {
         String fileName = JetTestUtils.navigationMetadata("idea/testData/resolve/references/InFunctionParameterType.kt");