[Issue 20600] New: C++ header output `-HC` can't write size_t correctly

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20600

          Issue ID: 20600
           Summary: C++ header output `-HC` can't write size_t correctly
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: turkeyman at gmail.com

Is it possible in DMD FE to detect that a type was declared as size_t? We need
to be able to detect this in order to emit the proper type back to the .h file
(and I suspect this same issue applies to .di files too)

--