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[NI] Remove lambda coersion to Unit in case of error return type(s)

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Coersion to Unit from error type leads to misleading type mismatches:
"expected <expected lambda return type> found Unit", despite no user-provided Unit / empty lambda.
These diagnostics were collected, but not reported before, and that had been disguising the issue for a while.

KT-34729 Fixed
This commit is contained in:
Pavel Kirpichenkov
2020-01-20 19:25:35 +03:00
parent 3a98c84105
commit c5893913f3
39 changed files with 263 additions and 46 deletions
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compiler/testData/diagnostics/tests/generics/projectionsScope/extensionReceiverTypeMismatch.kt
Vendored
+2 -2
View File
@@ -6,12 +6,12 @@ class A<T> {
class Out<out E>
fun test(x: A<out CharSequence>, y: Out<CharSequence>) {
with(x) {
<!NI;NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>with<!>(x) {
// TODO: this diagnostic could be replaced with TYPE_MISMATCH_DUE_TO_TYPE_PROJECTION
"".<!NI;DEBUG_INFO_UNRESOLVED_WITH_TARGET, UNRESOLVED_REFERENCE_WRONG_RECEIVER!>foo<!>()
<!OI;TYPE_MISMATCH_DUE_TO_TYPE_PROJECTIONS!>y<!>.<!NI;DEBUG_INFO_UNRESOLVED_WITH_TARGET, NI;UNRESOLVED_REFERENCE_WRONG_RECEIVER!>bar<!>()
with(y) {
<!NI;NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>with<!>(y) {
<!NI;DEBUG_INFO_UNRESOLVED_WITH_TARGET, NI;UNRESOLVED_REFERENCE_WRONG_RECEIVER, OI;TYPE_MISMATCH_DUE_TO_TYPE_PROJECTIONS!>bar<!>()
}
}