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

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

@@ -0,0 +1,7 @@
+class Test {
+    public void method() {
+        int i = 0;
+        while(i < 100)
+            sum += <selection>i++ * 2</selection>;
+    }
+}