Simplify Date methods.  Support arguments for Date.toLocaleDateString/toLocaleString/toLocaleTimeString.
Simplify Date methods.  Support arguments for Date.toLocaleDateString/toLocaleString/toLocaleTimeString.

NeilFraser/CodeCity,NeilFraser/CodeCity,NeilFraser/CodeCity,google/CodeCity,google/CodeCity,google/CodeCity,NeilFraser/CodeCity,google/CodeCity