Index: pkg/compiler/lib/src/types/container_type_mask.dart |
diff --git a/pkg/compiler/lib/src/types/container_type_mask.dart b/pkg/compiler/lib/src/types/container_type_mask.dart |
index edad3af22c807312b5261506ad192b87199b529b..cd5697aaf00c309ea1d155133c29db3405b42586 100644 |
--- a/pkg/compiler/lib/src/types/container_type_mask.dart |
+++ b/pkg/compiler/lib/src/types/container_type_mask.dart |
@@ -56,7 +56,7 @@ class ContainerTypeMask extends ForwardingTypeMask { |
return forwardIntersection.isNullable ? nullable() : nonNullable(); |
} |
- TypeMask union(other, ClosedWorld closedWorld) { |
+ TypeMask union(dynamic other, ClosedWorld closedWorld) { |
if (this == other) { |
return this; |
} else if (equalsDisregardNull(other)) { |