isInteger

pub fn isInteger(self: Type, builder: *const Builder) bool {
    return switch (self) {
        .i1, .i8, .i16, .i29, .i32, .i64, .i80, .i128 => true,
        else => switch (self.tag(builder)) {
            .integer => true,
            else => false,
        },
    };
}