K2: Set proper source for implicit it/receiver parameter

Previously, error types on those implicit parameters were being lost.

Changed test data is only partly here
(only parts that are considered to be correct).

Other ones (new green-to-red changes) should belong to the next commit
and will be fixed soon (as a part of PCLA).

compiler/frontend.common/src/org/jetbrains/kotlin/KtSourceElement.kt

@@ -230,6 +230,9 @@ sealed class KtFakeSourceElementKind(final override val shouldSkipErrorTypeRepor
     // where `it` parameter declaration has fake source
     object ItLambdaParameter : KtFakeSourceElementKind()
 
+    // While it doesn't have an explicit source, it still has a type that might be a ConeErrorType
+    object LambdaReceiver : KtFakeSourceElementKind()
+
     // { (a, b) -> foo() } -> { x -> val (a, b) = x; { foo() } }
     // where the inner block { foo() } has fake source
     object LambdaDestructuringBlock : KtFakeSourceElementKind()