[Bug bootstrap/81033] [8 Regression] Revision r249019 breaks bootstrap on darwin

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81033

--- Comment #14 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Revision r249930 breaks some objc tests:

% /opt/gcc/gcc8p-249834p3/bin/g++
/opt/gcc/work/gcc/testsuite/objc.dg/torture/forward-1.m
-L/opt/gcc/build_w/x86_64-apple-darwin16.6.0/libobjc/.libs -lobjc -O2
-fgnu-runtime
/var/folders/8q/sh_swgz96r7f5vnn08f7fxr00000gn/T//ccQHrZR1.s:100:38: error:
unexpected token in argument list
___cold_sect_of_"-[Receiver display]":
                                     ^
I'll attach the assembly with/without the patch for r249930.