vala: Set is_yield_expression in async context when chaining up to async base ctor

vala-CRITICAL **: vala_member_access_get_inner: assertion 'self != NULL' failed
vala-CRITICAL **: vala_member_access_get_member_name: assertion 'self != NULL' failed

Avoid these spurious criticals and trigger the currently expected error.

1 files changed, 5 insertions, 1 deletions

diff --git a/vala/valacreationmethod.vala b/vala/valacreationmethod.vala
index 9abc03007..a8910e5c3 100644
--- a/vala/valacreationmethod.vala
+++ b/vala/valacreationmethod.vala
@@ -200,7 +200,11 @@ public class Vala.CreationMethod : Method {
 					context.analyzer.current_symbol = body;
 					context.analyzer.insert_block = body;
 
-					var stmt = new ExpressionStatement (new MethodCall (new BaseAccess (source_reference), source_reference), source_reference);
+					var base_call = new MethodCall (new BaseAccess (source_reference), source_reference);
+					if (coroutine && cl.base_class.default_construction_method.coroutine) {
+						base_call.is_yield_expression = true;
+					}
+					var stmt = new ExpressionStatement (base_call, source_reference);
 					body.insert_statement (0, stmt);
 					stmt.check (context);