Reviewed-on: https://github.com/dlang/druntime/pull/3348

gcc/d/ChangeLog:

	* typeinfo.cc (TypeInfoVisitor::visit (TypeInfoDeclaration *)): Don't
	layout m_arg1 and m_arg2 fields.

libphobos/ChangeLog:

	* Makefile.in: Regenerate.
	* configure: Regenerate.
	* libdruntime/MERGE: Merge upstream druntime e4aae28e.
	* libdruntime/Makefile.am (DRUNTIME_DSOURCES): Refresh module list.
	(DRUNTIME_DSOURCES_BIONIC): Add core/sys/bionic/err.d.
	(DRUNTIME_DSOURCES_DARWIN): Add core/sys/darwin/err.d,
	core/sys/darwin/ifaddrs.d, core/sys/darwin/mach/nlist.d,
	core/sys/darwin/mach/stab.d, and core/sys/darwin/sys/attr.d.
	(DRUNTIME_DSOURCES_DRAGONFLYBSD): Add core/sys/dragonflybsd/err.d.
	(DRUNTIME_DSOURCES_FREEBSD): Add core/sys/freebsd/err.d.
	(DRUNTIME_DSOURCES_LINUX): Add core/sys/linux/err.d.
	(DRUNTIME_DSOURCES_NETBSD): Add core/sys/netbsd/err.d.
	(DRUNTIME_DSOURCES_OPENBSD): Add core/sys/openbsd/err.d.
	(DRUNTIME_DSOURCES_POSIX): Add core/sys/posix/locale.d,
	core/sys/posix/stdc/time.d, core/sys/posix/string.d, and
	core/sys/posix/strings.d.
	(DRUNTIME_DSOURCES_SOLARIS): Add core/sys/solaris/err.d.
	(DRUNTIME_DSOURCES_WINDOWS): Add core/sys/windows/sdkddkver.d,
	and core/sys/windows/stdc/time.d
	* libdruntime/Makefile.in: Regenerate.
	* libdruntime/gcc/sections/elf_shared.d (sizeofTLS): New function.
	* testsuite/libphobos.thread/fiber_guard_page.d: Use
	__traits(getMember) to get internal fields.