[dmd-internals] 64 bit specific test failure

[Brad Roberts]

../src/dmd -m32 -Icompilable   -odtest_results/compilable -oftest_results/compilable/interpret3_0.o -c compilable/interpret3.d
compilable/interpret3.d(2237): Error: cannot evaluate test3512() at compile time
compilable/interpret3.d(2237): Error: static assert  (test3512()) is not evaluatable at compile tim

Doesn't seem to matter if the output is 32 or 64, just that the compiler 
itself is 64 bit.