Forbidden old invokeExtension convention.

idea/testData/shortenRefs/this/shortenThisBothReceivers.kt

@@ -1,9 +1,5 @@
 class A {
-    fun test(b: B) {
+    fun test(b: A.() -> Unit) {
         <selection>this.b()</selection>
     }
 }
-
-class B() {
-    fun A.invoke() {}
-}

idea/testData/shortenRefs/this/shortenThisBothReceivers.kt.after

@@ -1,9 +1,5 @@
 class A {
-    fun test(b: B) {
+    fun test(b: A.() -> Unit) {
         b()
     }
 }
-
-class B() {
-    fun A.invoke() {}
-}

idea/testData/unifier/equivalence/expressions/calls/bothReceivers.kt

@@ -1,14 +0,0 @@
-class Bar {
-    init {
-        Foo()()
-    }
-}
-
-class Foo() {
-    fun Bar.invoke() {}
-}
-
-fun foobar(f: Foo) {
-    <selection>Bar().f()</selection>
-    Bar().f()
-}

idea/testData/unifier/equivalence/expressions/calls/bothReceivers.kt.match

@@ -1,3 +0,0 @@
-Bar().f()
-
-Bar().f()