IDEA-158094 Auto-completion popup could display values when autocompleting constants

java/java-tests/testData/codeInsight/completion/normal/ShowVarInitializers.java

@@ -0,0 +1,20 @@
+class X {
+    {
+        E.FIELD<caret>
+    }
+}
+
+enum E {
+    FIELD1( "x"),
+    FIELD2("y") {
+        public String toString() {
+            return super.toString();
+        }
+    },
+    FIELD3 {};
+
+    E(String s) {
+    }
+
+    public static final int FIELD4 = 42;
+}