extract method: disable make static when extracting from default method; ensure static extracting from constant in interface (IDEA-134636)

java/java-tests/testData/refactoring/extractMethod/Method2InterfaceFromStatic_after.java

@@ -0,0 +1,9 @@
+interface I {
+    static void foo () {
+        newMethod();
+    }
+
+    private static void newMethod() {
+        System.out.println("hello");
+    }
+}