PATCH to disable the canonical types check in verify_type (PR c++/70029)

[Jason Merrill]

On 04/14/2016 11:05 AM, Jakub Jelinek wrote:
> On Thu, Apr 14, 2016 at 11:01:02AM -0400, Jason Merrill wrote:
>> On 04/14/2016 10:30 AM, Marek Polacek wrote:
>>> +  /* FIXME: this is violated by the C++ FE as discussed in PR70029, when
>>> +     FUNCTION_*_QUALIFIED flags are set.  */
>>> +  if (0 && TYPE_MAIN_VARIANT (t) == t && ct && TYPE_MAIN_VARIANT (ct) != ct)
>>
>> How about guarding this check with flag_checking rather than disabling it
>> entirely?  That way it won't affect released compilers, and we can downgrade
>> the PR from P1, but doesn't hide the bug.
>
> That will still mean people who use -fchecking will keep reporting such
> ICEs.  I think it is better to disable it and reenable after GCC 6 branches.

OK.

Jason