Merge pull request google#624 from davidcalhoun/patch-1

typo: tyepof -> typeof

closure/goog/base.js

@@ -1453,7 +1453,7 @@ goog.typeOf = function(value) {
       // Check these first, so we can avoid calling Object.prototype.toString if
       // possible.
       //
-      // IE improperly marshals tyepof across execution contexts, but a
+      // IE improperly marshals typeof across execution contexts, but a
       // cross-context object will still return false for "instanceof Object".
       if (value instanceof Array) {
         return 'array';