A test hides a warning message (from gforge #9530)
Imported issue: Initially reported by @chevilla in https://gforge.inria.fr/tracker/?group_id=1015&aid=9530
In the following piece of code, one would expect the warning to be printed also in the second case.
round(1, 1, 1);
Warning: at least one of the given expressions or a subexpression is not correctly typed
or its evaluation has failed because of some error on a side-effect.
error
1==round(1, 1, 1);
false