Deprecate implicit `int` to `bool` conversion for integer literals

[Michael V. Franklin]

On Tuesday, 14 November 2017 at 13:17:22 UTC, Steven 
Schveighoffer wrote:

> The array handling is probably the only part that would be 
> painful. but we could handle that the same way we deprecated 
> octal numbers:
>
> bools!"01001101"; => [false, true, false, false, true, true, 
> false, true];

Thanks for chiming in.  `bool[] boolValues = 
cast(bool[])[0,1,0,1]` will still work fine under option 1.  It's 
only *implicit* casting that's being proposed for deprecation.

Mike