switch + if + enum confused the compiler

[ayende]

Zig Version

0.9.0

Steps to Reproduce

Try to compile the following code (https://godbolt.org/z/b5fj6dhxG):

pub const Num = enum{Even,Odd};

fn isEven(a: u32) Num {
    return switch(a) {
       3 => if (a & 1 != 0 ) .Odd else .Even,
       else => .Even
    };
}

Expected Behavior

Should compile successfully

Actual Behavior

/example.zig:23:13: error: values of type '@Type(.EnumLiteral)' must be comptime known
       3 => if (a & 1 != 0 ) .Odd else .Even,
            ^

[Vexu]

Duplicate of #3750, fixed in the self hosted compiler.