Inline inner: check when possible to inline this ref only (IDEA-39274)

java/java-tests/testData/refactoring/inlineToAnonymousClass/CanBeInvokedOnReference.java

@@ -0,0 +1,7 @@
+public class Simple {}
+
+class Usage {
+  void foo() {
+    String s = new Si<caret>mple().toString();
+  }
+}