[Issue 24429] [ImportC] improve error message for size_t

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=24429

Richard Cattermole <alphaglosined at gmail.com> changed:

           What    |Removed                     |Added
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           Keywords|                            |ImportC
           Priority|P1                          |P5
                 CC|                            |alphaglosined at gmail.com
           Severity|minor                       |enhancement

--- Comment #1 from Richard Cattermole <alphaglosined at gmail.com> ---
This should also apply to ptrdiff_t.

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