When highlighting PHP builtins, use Name.Builtin as token type.
When highlighting PHP builtins, use Name.Builtin as token type.

tomstuart/pygments,tomstuart/pygments,tomstuart/pygments,tomstuart/pygments,tomstuart/pygments,tomstuart/pygments,tomstuart/pygments,tomstuart/pygments,tomstuart/pygments,tomstuart/pygments,tomstuart/pygments,tomstuart/pygments,tomstuart/pygments,tomstuart/pygments,tomstuart/pygments