ES6 symbols: implement name property

test/mjsunit/harmony/symbols.js

Index: test/mjsunit/harmony/symbols.js
diff --git a/test/mjsunit/harmony/symbols.js b/test/mjsunit/harmony/symbols.js
index 15f7275fac32f2c6ff71562db16e5a4a132b2aa0..1d98f548a45f57d0a27f14841928964c1c1bffd4 100644
--- a/test/mjsunit/harmony/symbols.js
+++ b/test/mjsunit/harmony/symbols.js
@@ -37,6 +37,9 @@ function TestNew() {
   for (var i = 0; i < 2; ++i) {
     for (var j = 0; j < 5; ++j) {
       symbols.push(Symbol())
+      symbols.push(Symbol(undefined))
+      symbols.push(Symbol("66"))
+      symbols.push(Symbol(66))
       symbols.push(Symbol(Symbol()))
       symbols.push((new Symbol).valueOf())
       symbols.push((new Symbol()).valueOf())
@@ -64,6 +67,15 @@ function TestType() {
 TestType()
 
 
+function TestName() {
+  for (var i in symbols) {
+    var name = symbols[i].name
+    assertTrue(name === undefined || name === "66")
+  }
+}
+TestName()
+
+
 function TestToString() {
   for (var i in symbols) {
     assertThrows(function() { String(symbols[i]) }, TypeError)