Inline assembly errors lose source location so it' hard to understand where error is

[mholub]

Zig Version

0.13.0-dev.46+3648d7df1

Steps to Reproduce and Observed Output

1. Save this to some file, i.e. inline_assembly_error_message.zig

inline fn rdtsc() u64 {
    var hi: u64 = 0;
    var low: u64 = 0;

    //Changing the following to rdtsc fixes the bug
    asm volatile (
        \\rdtsc
        : [low] "={eax}" (low),
          [hi] "={edx}" (hi),
    );
    return (@as(u64, hi) << 32) | @as(u64, low);
}

pub fn main() void {
    _ = rdtsc();
}

2. compile it for some platform which doesn't support the assembly above

zig build-exe -target aarch64-macos-none inline_assembly_error_message.zig

3. output will be

❯ zig build-exe -target aarch64-macos-none inline_assembly_error_message.zig
LLVM Emit Object... error: couldn't allocate output register for constraint '{eax}'

I think it's general problem with inline assembly?

I was able to get similar error just by writing nonsense

zig build-exe -target aarch64-macos-none inline_assembly_error_message.zig
LLVM Emit Object... error: <inline asm>:1:2: unrecognized instruction mnemonic
        rdtsc

observe how it lost filename too

Expected Output

❯ zig build-exe -target aarch64-macos-none inline_assembly_error_message.zig
LLVM Emit Object... error: couldn't allocate output register for constraint '{eax}'

at inline_assembly_error_message.zig:8  // so it should include source location

[Rexicon226]

Duplicate of #246 I believe.