Introduce Parameter: Suggest removing extension receiver which becomes unused after new parameter is added

idea/testData/refactoring/introduceParameter/substituteDoubleReceiver.kt.after

@@ -2,19 +2,19 @@
 public inline fun <T, R> with(receiver: T, f: T.() -> R): R = receiver.f()
 
 class A(val a: Int) {
-    fun A.foo(i: Int): Int {
+    fun foo(i: Int): Int {
         return i / 2
     }
 
     fun test() {
         val a1 = A(1)
-        a1.foo(a + a1.a)
+        foo(a + a1.a)
     }
 }
 
 fun test() {
     val t = with(A(1)) {
         val a = A(2)
-        a.foo(this.a + a.a)
+        foo(this.a + a.a)
     }
 }

idea/testData/refactoring/introduceParameter/unusedDispatchReceiver.kt

@@ -0,0 +1,14 @@
+// WITH_RUNTIME
+// WITH_DEFAULT_VALUE: false
+class A(val n: Int) {
+    fun foo(): Int {
+        return <selection>n + 1</selection>
+    }
+}
+
+fun test() {
+    A(1).foo()
+    with(A(1)) {
+        foo()
+    }
+}

idea/testData/refactoring/introduceParameter/unusedDispatchReceiver.kt.after

@@ -0,0 +1,15 @@
+// WITH_RUNTIME
+// WITH_DEFAULT_VALUE: false
+class A(val n: Int) {
+    fun foo(i: Int): Int {
+        return i
+    }
+}
+
+fun test() {
+    val a = A(1)
+    a.foo(a.n + 1)
+    with(A(1)) {
+        foo(n + 1)
+    }
+}

idea/testData/refactoring/introduceParameter/unusedExtensionReceiver.kt

@@ -0,0 +1,14 @@
+// WITH_RUNTIME
+// WITH_DEFAULT_VALUE: false
+class A(val n: Int)
+
+fun A.foo(): Int {
+    return <selection>n + 1</selection>
+}
+
+fun test() {
+    A(1).foo()
+    with(A(1)) {
+        foo()
+    }
+}

idea/testData/refactoring/introduceParameter/unusedExtensionReceiver.kt.after

@@ -0,0 +1,15 @@
+// WITH_RUNTIME
+// WITH_DEFAULT_VALUE: false
+class A(val n: Int)
+
+fun foo(i: Int): Int {
+    return i
+}
+
+fun test() {
+    val a = A(1)
+    foo(a.n + 1)
+    with(A(1)) {
+        foo(n + 1)
+    }
+}