tint: Make tint::ast::HasAttribute() accept multiple template arguments

Change-Id: I42efb3e603ac1d92c77e48784f7a9d010ade3047
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/96021
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>

src/tint/ast/attribute.h

@@ -43,10 +43,10 @@ using AttributeList = std::vector<const Attribute*>;
 
 /// @param attributes the list of attributes to search
 /// @returns true if `attributes` includes a attribute of type `T`
-template <typename T>
+template <typename... Ts>
 bool HasAttribute(const AttributeList& attributes) {
     for (auto* attr : attributes) {
-        if (attr->Is<T>()) {
+        if (attr->IsAnyOf<Ts...>()) {
             return true;
         }
     }