[Bug d/91561] New: [Regression] Internal Compiler Error: type ‘ubyte[]’ can not be mapped to C++

[bugzilla at allegrodvt dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91561

            Bug ID: 91561
           Summary: [Regression] Internal Compiler Error: type ‘ubyte[]’
                    can not be mapped to C++
           Product: gcc
           Version: 9.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: d
          Assignee: ibuclaw at gdcproject dot org
          Reporter: bugzilla at allegrodvt dot com
  Target Milestone: ---

The following code compiles on gdc-8.2 but failed on gdc-9.2:
----------------------
extern(C++) :
alias ubyte[] Array;

class Interface
{
  abstract void getArray(ref Array a);
}

void main()
{
}
-----------------------

The error is:
error: Internal Compiler Error: type ‘ubyte[]’ can not be mapped to C++
    6 |   abstract void getArray(ref Array a);
      |                 ^