Pull Up/Extract Interface: Disable "Make abstract" and assume it to be true for abstract members of an interface

#KT-15355 Fixed

idea/testData/refactoring/pullUp/k2k/abstractFromInterfaceToInterface.kt

@@ -0,0 +1,9 @@
+// WITH_RUNTIME
+interface T
+
+interface <caret>U: T {
+    // INFO: {"checked": "true"}
+    val x: Int
+    // INFO: {"checked": "true"}
+    fun foo(n: Int): Boolean
+}

idea/testData/refactoring/pullUp/k2k/abstractFromInterfaceToInterface.kt.after

@@ -0,0 +1,11 @@
+// WITH_RUNTIME
+interface T {
+    // INFO: {"checked": "true"}
+    val x: Int
+
+    // INFO: {"checked": "true"}
+    fun foo(n: Int): Boolean
+}
+
+interface U: T {
+}