don't qualify with this in static context (IDEA-166793)

java/java-psi-impl/src/com/intellij/refactoring/util/RefactoringChangeUtil.java

@@ -95,7 +95,13 @@ public class RefactoringChangeUtil {
         ((PsiThisExpression)expressionFromText.getQualifierExpression()).getQualifier().replace(factory.createClassReferenceElement(parentClass));
       }
       else {
-        expressionFromText = (PsiReferenceExpression)factory.createExpressionFromText("this." + member.getName(), null);
+        final PsiModifierListOwner staticElement = PsiUtil.getEnclosingStaticElement(referenceExpression, null);
+        if (staticElement != null && containingClass != null && !PsiTreeUtil.isAncestor(staticElement, containingClass, false)) {
+          return referenceExpression;
+        }
+        else {
+          expressionFromText = (PsiReferenceExpression)factory.createExpressionFromText("this." + member.getName(), null);
+        }
       }
     }
     else {

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/changeMethodSignatureFromUsage/afterConflictingFieldName.java

@@ -0,0 +1,26 @@
+// "Add 'C2' as 2nd parameter to method 'f'" "true"
+
+final class X {
+
+    public static final class C2 { }
+
+    public static final class C {
+
+        public static void main(String[] argArr) {
+            final C2 c2 = new C2();
+            final C c = f(123, c2);
+        }
+
+        public static C f(final int i, C2 c2) {
+            return new C(i, c2);
+        }
+
+        private final int i;
+        private final C2 c2;
+
+        private C(final int i, C2 c2) {
+            this.i = i;
+            this.c2 = c2;
+        }
+    }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/changeMethodSignatureFromUsage/beforeConflictingFieldName.java

@@ -0,0 +1,26 @@
+// "Add 'C2' as 2nd parameter to method 'f'" "true"
+
+final class X {
+
+    public static final class C2 { }
+
+    public static final class C {
+
+        public static void main(String[] argArr) {
+            final C2 c2 = new C2();
+            final C c = f(123, <caret>c2);
+        }
+
+        public static C f(final int i) {
+            return new C(i, c2);
+        }
+
+        private final int i;
+        private final C2 c2;
+
+        private C(final int i, C2 c2) {
+            this.i = i;
+            this.c2 = c2;
+        }
+    }
+}