fix comptime fn execution not returning error unions properly
fix comptime fn execution not returning error unions properly

zig-lang/zig,Dimenus/zig,raulgrell/zig,andrewrk/zig,raulgrell/zig,raulgrell/zig,zig-lang/zig,Dimenus/zig,raulgrell/zig,Dimenus/zig,zig-lang/zig,andrewrk/zig,raulgrell/zig