Incorrect evaluation precedence for bitwise operators

[tgschultz]

According to the documentation, bitwise operator precedence is as follows:

• ~x
• << >>
• &
• ^
• |

However, this changed at some point, causing the following test to fail:

const std = @import("std");
const debug = std.debug;

test "" {
    var x = u16(0xFF00);
    x = x | u8(0xFF) & 0x0F;
    debug.assert(x == 0xFF0F);
}

[andrewrk]

Related #114

[markfirmware]

markfirmware/zig-bare-metal-microbit#10

What would be needed to get | and & to evaluate as specified? Thanks, Mark.

[markfirmware]

@tgschultz @andrewrk I think this should be labeled miscompilation.

[andrewrk]

It's planned for this to be a compile error; one must use parentheses for this. #114