Add min and max to Iterable and Stream.

sdk/lib/html/templates/immutable_list_mixin.darttemplate

Index: sdk/lib/html/templates/immutable_list_mixin.darttemplate
diff --git a/sdk/lib/html/templates/immutable_list_mixin.darttemplate b/sdk/lib/html/templates/immutable_list_mixin.darttemplate
index 926490847c4a268c78c0445d6147ae92293d4de0..f94ba1ca29fb4df2cc2fd3c216fe8ca8a4659eb3 100644
--- a/sdk/lib/html/templates/immutable_list_mixin.darttemplate
+++ b/sdk/lib/html/templates/immutable_list_mixin.darttemplate
@@ -123,6 +123,10 @@ $endif
     throw new StateError("More than one element");
   }
 
+  $E min([int compare($E a, $E b)]) => _Collections.minInList(this, compare);
+
+  $E max([int compare($E a, $E b)]) => _Collections.maxInList(this, compare);
+
   $E removeAt(int pos) {
     throw new UnsupportedError("Cannot removeAt on immutable List.");
   }