convert to instance/move instance: support default methods in interfaces for java 8 (IDEA-154833)

java/java-tests/testData/refactoring/convertToInstance8Method/ConflictingParameterName.java

@@ -0,0 +1,15 @@
+class Foo {
+
+    public String bar;
+    private String baz;
+
+    public static void set<caret>Bar(Foo foo, String bar) {
+        foo.bar = bar;
+        foo.baz = bar;
+        foo.bar();
+    }
+
+    private void bar() {
+
+    }
+}