]) are treated as one character in ANSI encoding

[lifenjoiner]

It seems 3c8699f missed something that caused this.

To reproduce:

1. With code snippet:

   if (obj[0]) {}

   or just:

   ])
   

2. Encoding -> ANSI or loading it with LoadASCIIasUTF8=0.

Also occurs on other bunches of 2 chars, like if.

[zufuliu]

Fixed by 61abd54,