[Bug debug/121763] Disable -gstatement-frontiers, -gvariable-location-views by default

[sjames at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121763

--- Comment #4 from Sam James <sjames at gcc dot gnu.org> ---
> Expected noise (and an -fcompare-debug issue fixed):

We should check what is going on with pr43479.c too.