Set ctx.separator to false after untyped __js__ block.
Set ctx.separator to false after untyped __js__ block.

Effect is to ensure there's no ';' inserted when last character
of __js__ block was { } or :

pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe,pleclech/hacking-haxe