can be diamond: ensure inner class is referenced as simple name, otherwise qualified text with generics outer class would lead to kinda raw type (IDEA-159179)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/explicit2diamond/afterDiamondWithInnerClassArgumentInsideGenericOuterClass.java

@@ -0,0 +1,12 @@
+// "Replace with <>" "true"
+import java.util.ArrayList;
+import java.util.List;
+
+class Util<T> {
+
+    private class WithPosition {}
+
+    public void addNewlyAddedChildrenOf() {
+        List<WithPosition> addings = new ArrayList<>();
+    }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/explicit2diamond/beforeDiamondWithInnerClassArgumentInsideGenericOuterClass.java

@@ -0,0 +1,12 @@
+// "Replace with <>" "true"
+import java.util.ArrayList;
+import java.util.List;
+
+class Util<T> {
+
+    private class WithPosition {}
+
+    public void addNewlyAddedChildrenOf() {
+        List<WithPosition> addings = new ArrayList<With<caret>Position>();
+    }
+}