FIR: rewrite lambda return type inference

* `return` should only be added to the last statement if the return
   type is not Unit

 * If there is a `return` without an argument, then the expected return
   type is Unit and the last expression is not a return argument (unless
   it's an incomplete call, in which case it is inferred to return Unit;
   this behavior is questionable, but inherited from K1)

 * There should be a constraint on return arguments even if the expected
   type is Unit, otherwise errors will be missed

 * When the expected type is known, using the call completion results
   writer is pointless (and probably subtly wrong).

^KT-54742 Fixed

This commit is contained in:

pyos

2022-12-08 12:02:43 +01:00

committed by

Dmitriy Novozhilov

parent 544cf386af

commit 803abfeba8

21 changed files with 241 additions and 538 deletions

									
										compiler/testData/ir/irText/declarations/contextReceivers/lazy.kt
									
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				// FIR_IDENTICAL

				// !LANGUAGE: +ContextReceivers

				interface Lazy<T>