IDEA-111362 Generate constructor removes "m" from variable name

java/java-tests/testData/codeInsight/generateConstructor/afterFieldPrefixCoincidence.java

@@ -0,0 +1,8 @@
+class Parent {
+    Object menu;
+
+    Parent(Object menu) {
+        this.menu = menu;
+    }
+}
+

java/java-tests/testData/codeInsight/generateConstructor/beforeFieldPrefixCoincidence.java

@@ -0,0 +1,5 @@
+class Parent {
+    Object menu;
+<caret>
+}
+