show error for enums constants referenced from instance field initializer (IDEA-136196)

java/java-psi-api/src/com/intellij/psi/util/PsiUtil.java

@@ -823,8 +823,9 @@ public final class PsiUtil extends PsiUtilCore {
 
   @Nullable
   public static PsiMember findEnclosingConstructorOrInitializer(PsiElement expression) {
-    PsiMember parent = PsiTreeUtil.getParentOfType(expression, PsiClassInitializer.class, PsiEnumConstantInitializer.class, PsiMethod.class);
+    PsiMember parent = PsiTreeUtil.getParentOfType(expression, PsiClassInitializer.class, PsiEnumConstantInitializer.class, PsiMethod.class, PsiField.class);
     if (parent instanceof PsiMethod && !((PsiMethod)parent).isConstructor()) return null;
+    if (parent instanceof PsiField && parent.hasModifierProperty(PsiModifier.STATIC)) return null;
     return parent;
   }
 

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting6/EnumInstanceFieldInitializer.java

@@ -0,0 +1,13 @@
+enum MyEnumTest {
+  FOO;
+  MyEnumTest Foo = <error descr="It is illegal to access static member 'FOO' from enum constructor or instance initializer">FOO</error>;
+
+  {
+    MyEnumTest foo = <error descr="It is illegal to access static member 'FOO' from enum constructor or instance initializer">FOO</error>;
+  }
+  static MyEnumTest Bar = FOO;
+
+  MyEnumTest() {
+    System.out.println(<error descr="It is illegal to access static member 'Bar' from enum constructor or instance initializer">Bar</error>);
+  }
+}

java/java-tests/testSrc/com/intellij/codeInsight/daemon/LightAdvHighlightingJdk6Test.java

@@ -69,6 +69,7 @@ public class LightAdvHighlightingJdk6Test extends LightDaemonAnalyzerTestCase {
   public void testEnumInitializers() { doTest(false, false); }
   public void testEnumSynthetics() { doTest(false, false); }
   public void testEnumWithoutConstants() { doTest(false, false); }
+  public void testEnumInstanceFieldInitializer() { doTest(false, false); }
   public void testIDEA79251() { doTest(false, false); }
   public void testIDEA65473() { doTest(false, false); }
   public void testIDEA61415() { doTest(false, false); }