Avoid using inherited hasOwnProperty

Fix #1031

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/ast.js b/lib/ast.js
index 0ac14dc9..2a461834 100644
--- a/lib/ast.js
+++ b/lib/ast.js
@@ -71,7 +71,7 @@ function DEFNODE(type, props, methods, base) {
     if (type) {
         ctor.prototype.TYPE = ctor.TYPE = type;
     }
-    if (methods) for (i in methods) if (methods.hasOwnProperty(i)) {
+    if (methods) for (i in methods) if (HOP(methods, i)) {
         if (/^\$/.test(i)) {
             ctor[i.substr(1)] = methods[i];
         } else {