make static: allow to delegate (IDEA-24060)

java/java-tests/testData/refactoring/makeMethodStatic/afterFieldsAndDelegation.java

@@ -0,0 +1,18 @@
+class C {
+  int i;
+
+    private void foo() {
+        foo(i);
+    }
+
+    private static void foo(int i) {
+    if (true) {
+      foo(i);
+    }
+    System.out.println(i);
+  }
+  
+  {
+    foo();
+  }
+}