Fix test fails in Safari 5.

lodash.js

@@ -660,7 +660,6 @@
         bufferSlice = isNative(bufferSlice = ArrayBuffer && new ArrayBuffer(0).slice) && bufferSlice,
         ceil = Math.ceil,
         clearTimeout = context.clearTimeout,
-        Float64Array = isNative(Float64Array = context.Float64Array) && Float64Array,
         floor = Math.floor,
         getPrototypeOf = isNative(getPrototypeOf = Object.getPrototypeOf) && getPrototypeOf,
         hasOwnProperty = objectProto.hasOwnProperty,
@@ -672,6 +671,18 @@
         Uint8Array = isNative(Uint8Array = context.Uint8Array) && Uint8Array,
         unshift = arrayProto.unshift;
 
+    /** Used to clone array buffers */
+    var Float64Array = (function() {
+      // Safari 5 errors when using an array buffer to initialize a typed array
+      // where the array buffer's `byteLength` is not a multiple of the typed
+      // array's `BYTES_PER_ELEMENT`
+      try {
+        var func = isNative(func = context.Float64Array) && func,
+            result = new func(new ArrayBuffer(10), 0, 1) && func;
+      } catch(e) { }
+      return result;
+    }());
+
     /** Used to set metadata on functions */
     var defineProperty = (function() {
       // IE 8 only accepts DOM elements