Convert to scope function: enable on single function call

#KT-29099 Fixed

idea/testData/intentions/convertToScope/convertToAlso/callExpression5.kt

@@ -1,5 +1,4 @@
 // WITH_RUNTIME
-// IS_APPLICABLE: false
 
 class Foo {
     fun foo(i: Int) {}
@@ -11,6 +10,7 @@ fun test() {
     listOf(1).forEach {
         val f = Foo()<caret>
         f.foo(1)
+        f.foo(2)
         bar(it, f)
     }
 }