push down from interface to abstract class fixed (IDEA-82286)

java/java-tests/testData/refactoring/pushDown/MethodFromInterfaceToAbstractClass.java.after

@@ -0,0 +1,7 @@
+abstract class StraightLine implements Inline {
+    public abstract void go(); // inline this method
+}
+
+interface Inline {
+
+}