Code clean and some refactorings in 'getLambdaIfExistsAndMarkInstructions'

compiler/testData/codegen/boxInline/complexStack/asCheck2.2.kt

@@ -0,0 +1,18 @@
+package test
+
+object ContentTypeByExtension {
+    inline fun processRecords(crossinline operation: (String) -> String) =
+             {
+                val ext = B("OK")
+                operation(ext.toLowerCase())
+            }()
+}
+
+
+
+
+inline fun A.toLowerCase(): String = (this as B).value
+
+open class A
+
+open class B(val value: String) : A()