gcc/testsuite/gdc.test/compilable/test20138.d

alias C = const int;
static assert(is(shared(C) U == shared U) && is(U == C));
static assert(is(shared(C) == shared U, U) && is(U == C));

alias I = inout int;
static assert(is(shared(I) U == shared U) && is(U == I));
static assert(is(shared(I) == shared U, U) && is(U == I));

alias IC = inout const int;
static assert(is(shared(IC) U == shared U) && is(U == IC));
static assert(is(shared(IC) == shared U, U) && is(U == IC));

alias S = shared int;
static assert(is(const(S) U == const U) && is(U == shared int));
static assert(is(inout(S) U == inout U) && is(U == shared int));
static assert(is(inout(const S) U == inout(const U)) && is(U == shared int));