Using DMD 2.049, using the msg pragma on a template tuple instantiated from a template function results in an ICE.:

Assertion failure: 'precedence[e->op] != PREC_zero' on line 816 in file 'expression.c'

Test code:

T foo(T)(T t) { return t; }
template map(fun...) {
    pragma(msg,fun);
    enum map = 5;
}

void main() {
    map!foo;
    return;
}