Summary: concatenation operator doesn't like typed named enums
           Product: D
           Version: 1.045
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: rejects-valid
          Severity: normal
          Priority: P3
         Component: DMD

=== Testcase ===
enum Enum : ubyte

void main()
    ubyte[] array;
    array = array ~ [Enum.Test];
=== Compiler output ===
test.d(9): Error: incompatible types for ((array) ~
([cast(Enum)cast(ubyte)0u])): 'ubyte[]' and 'Enum[1u]'
test.d(9): Error: Can only concatenate arrays, not (int ~ int)
test.d(9): Error: cannot implicitly convert expression (__error ~ __error) of
type int to ubyte[]
=== Testcase end ===

This seems to be a very specific bug, in that changing many of the factors
allows the code to compile. For example, changing the concatenation to an
append (~=) or removing the enum name (Enum) will both allow the code to
compile. Removing the square brackets around Enum.Test has no effect.

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