math_brute_force remquo test does not check additional requirement for defined 0 quo output for nan results

[arsenm]

Under "7.5.1. Additional Requirements Beyond C99 TC2", it is specified that remquo has a defined 0 output for the quo out argument when the result is a nan.

remquo(x, y, &_quo_) returns a NaN and 0 in quo if x is ±∞, or if y is 0 and the other argument is non-NaN or if either argument is a NaN.

The conformance test does not check this, and assumes this is an undefined result. The code has an explicitly wrong check and comment forfloat, double and half

[bashbaug]

I think this is a specific example of the general problem described in #2641.