fix bug: bool Array values are always false

[rampage-raw]

Using [] in lua doesn't access the characters of a string, which results in the value of an array of type bool always being false

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[le-michael]

Can you add a test case to tests/luatest.lua for this change?

[rampage-raw]

Can you add a test case to tests/luatest.lua for this change?

There are still some bugs in this fix, I'll take care of them later and add test cases.

[serprex]

@Cindlory would you like me to pick up this PR & add a test?

There's also an issue with how bools are encoded in general, addressed in #8252

[rampage-raw]

@Cindlory would you like me to pick up this PR & add a test?

There's also an issue with how bools are encoded in general, addressed in #8252

@serprex no problem. Due to project changes at work, I put this issue on hold. My PR may not fix the problem, I remember it may be related to Lua's generated code.