Some global symbols cannot be used

[antoyo]

Because we use -fasm=intel, we cannot use some symbols like byte.

For instance, the following code:

#[no_mangle]
pub fn byte() {
    println!("Byte");
}

will cause the following error:

/tmp/libgccjit-Wnkc4D/fake.s: Assembler messages:
/tmp/libgccjit-Wnkc4D/fake.s: Error: .size expression for byte does not evaluate to a constant

See these:

• https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118268
• https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53929