Index: pkg/compiler/lib/src/util/emptyset.dart |
diff --git a/pkg/compiler/lib/src/util/emptyset.dart b/pkg/compiler/lib/src/util/emptyset.dart |
index da9942c4ff3cb022df303b766aab4edca1607822..26474da95ef7aa49965397723f8f6c112a6d5815 100644 |
--- a/pkg/compiler/lib/src/util/emptyset.dart |
+++ b/pkg/compiler/lib/src/util/emptyset.dart |
@@ -32,7 +32,7 @@ class ImmutableEmptySet<E> extends IterableBase<E> implements Set<E> { |
Set<E> union(Set<E> other) => new Set.from(other); |
Set<E> intersection(Set<E> other) => this; |
- Set<E> difference(Set<E> other) => this; |
+ Set<E> difference(Set<Object> other) => this; |
Set<E> toSet() => new Set(); |
} |