[Bug lto/59543] [4.9 Regression] lto1: fatal error: Cgraph edge statement index out of range

[trippels at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59543

--- Comment #3 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
It turned out to be a problem with debugging information.
Some files in libjs_static.a are build with "-g", even when
Firefox is configured with --disable-debug --disable-debug-symbols.

If I add -g to the g++ invocation above, or build the object files
in libjs_static.a without -g, the issue goes away.