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

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

@@ -0,0 +1,10 @@
+class Test {
+  /**
+   * method description
+   * @param a description
+   */
+  public static void ma<caret>in(A a) {
+  }
+}
+
+class A {}