Code clean and some refactorings in 'getLambdaIfExistsAndMarkInstructions'

compiler/testData/codegen/boxInline/complexStack/simple2.2.kt

@@ -0,0 +1,11 @@
+package test
+
+inline fun foo(x: String) = x
+
+class A {
+    fun test(s: String) = s
+}
+
+inline fun processRecords(block: (String) -> String): String {
+    return A().test(block(foo("K")))
+}