DoLoops not working for i64 increment variable

[Madhav2310]

For the following code:

    i: i64
    for i in range(len(s)):
        char = s[i]
        if ord(char) >= 65 and ord(char) <=90 :
            result += chr(ord(char) + 32)
        else :
            result += char

This works for i: i32 but not for i: i64

[namannimmo10]

Thanks for the report! It seems to me that the issue is caused here:

lpython/src/lpython/semantics/python_ast_to_asr.cpp

Lines 2681 to 2682 in 1c7430f

	ASR::ttype_t *a_type = ASRUtils::TYPE(ASR::make_Integer_t(al, x.base.base.loc,
	4, nullptr, 0));

If let's say we change the kind from 4 to 8, then it works for i64 but not for i32. Looks like an easy fix, we should replace 4 with the kind of i (variable).