Push Down: Conflict analysis

idea/testData/refactoring/pushDown/pushMembersWithExternalUsages.kt

@@ -0,0 +1,37 @@
+open class <caret>A {
+    fun foo() {
+
+    }
+
+    // INFO: {"checked": "true"}
+    fun foo(n: Int) {
+
+    }
+
+    fun test() {
+        foo()
+        foo(1)
+    }
+}
+
+open class B : A() {
+
+}
+
+class C : B() {
+
+}
+
+fun A.test() {
+    foo()
+    foo(2)
+}
+
+fun test() {
+    A().foo()
+    A().foo(3)
+    B().foo()
+    B().foo(4)
+    C().foo()
+    C().foo(5)
+}