Broken site based impl

lib/stdlib/boolean.js

@@ -0,0 +1,12 @@
+// Converts any value to a boolean, like the spec's ToBoolean
+function Boolean(x) {
+    return !!x;
+}
+
+// In these methods `this` is the primitive boolean itself
+Boolean.prototype = {
+    toString() { return this ? "true" : "false"; },
+    valueOf() { return this; },
+};
+
+__link_proto_boolean(Boolean.prototype);