do not need parenthesis for associative operations (IDEADEV-41569); move to java-tests

java/java-tests/testData/refactoring/introduceVariable/ConflictingFieldInOuterClass.java

@@ -0,0 +1,8 @@
+public class Test4 {
+    String text = "Hello world!";
+    private class Q {
+        void foo() {
+            System.out.println("text = " + <selection>text</selection>);
+        }
+    }
+}