[es6] Map/Set size getter should have "get size" name

src/v8natives.js

Index: src/v8natives.js
diff --git a/src/v8natives.js b/src/v8natives.js
index 41453d0b5364660c24f8cd9a51c93a9e71de6ffd..65b0334c523c6f47f9d485a8ecaa3bb6cbbf0160 100644
--- a/src/v8natives.js
+++ b/src/v8natives.js
@@ -46,7 +46,8 @@ function InstallGetter(object, name, getter, attributes) {
   if (typeof attributes == "undefined") {
     attributes = DONT_ENUM;
   }
-  %FunctionSetName(getter, name);
+  %FunctionSetName(getter, `get ${

[caitp (gmail), 2015/04/23 19:23:45]

templates makes it look more readable, but remember the ToString() calls are
potentially slow down bootstrapping a bit. Not sure how significantly though.

[arv (Not doing code reviews), 2015/04/23 19:51:53]

Changed to +. It does not get too ugly.

+      IS_SYMBOL(name) ? `[${%SymbolDescription(name)}]` : name}`);
   %FunctionRemovePrototype(getter);
   %DefineAccessorPropertyUnchecked(object, name, getter, null, attributes);
   %SetNativeFlag(getter);
@@ -55,8 +56,9 @@ function InstallGetter(object, name, getter, attributes) {
 
 // Helper function to install a getter/setter accessor property.
 function InstallGetterSetter(object, name, getter, setter) {
-  %FunctionSetName(getter, name);
-  %FunctionSetName(setter, name);
+  var functionName = IS_SYMBOL(name) ? `[${%SymbolDescription(name)}]` : name;
+  %FunctionSetName(getter, `get ${functionName}`);
+  %FunctionSetName(setter, `set ${functionName}`);
   %FunctionRemovePrototype(getter);
   %FunctionRemovePrototype(setter);
   %DefineAccessorPropertyUnchecked(object, name, getter, setter, DONT_ENUM);