[Issue 24132] New: ImportC: Add support for wchar_t

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=24132

          Issue ID: 24132
           Summary: ImportC: Add support for wchar_t
           Product: D
           Version: D2
          Hardware: All
                OS: Windows
            Status: NEW
          Keywords: ImportC, rejects-valid
          Severity: enhancement
          Priority: P1
         Component: dmd
          Assignee: bugzilla at digitalmars.com
          Reporter: flyboynw at gmail.com

Currently ImportC handles wchar_t as a ushort, which works but is painful to
use in D code that expects wchar* instead of ushort* for string pointers
(example: the return value of toUTF16z).

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