Convert to scope function: enable on single function call

#KT-29099 Fixed

idea/testData/intentions/convertToScope/convertToRun/methodChainWithThisParameter.kt

@@ -1,5 +1,4 @@
 // WITH_RUNTIME
-// IS_APPLICABLE: false
 
 class MyClass {
     fun foo1(a: MyClass): MyClass = this
@@ -9,5 +8,7 @@ class MyClass {
     fun foo4(a: MyClass) {
         a.foo1(this).foo2().foo3()
         a.foo2()<caret>
+        a.foo3()
+        a.foo1(this).foo2().foo3()
     }
 }