Extreme performance issues and unoptimized decompilation of logical operators.

[Sean Fujiwara]

The following code turns into a huge group of nested if, and if duplicated a few times, takes more than a minute to decompile.
var obj:Object;
if(obj.prop == 1 || obj.prop == 2 || obj.prop == 3 || obj.prop == 4)
{
trace('if');
}
else
{
trace('else');
}

[Sean Fujiwara]

This still decompiles into a huge block of code, but for now homes410's commit fixes this.