PR libstdc++/28514 
	* include/bits/cpp_type_traits.h (__detail): Uglify namespace.
	* include/ext/rope: Remove global-scope anonymous namespace, use
	nested __detail. Fixup resulting formatting issues.
	* include/ext/ropeimpl.h: Same.
	* include/tr1/hashtable_policy.h: Remove anonymous namespace
	nesting for __detail.
	* include/tr1/random: Revert anonymous namespace to nested
	__detail namespace.
	* include/tr1/random.tcc: Same.
	* src/ext-inst.cc: Fixups for above.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@117824 138bc75d-0d04-0410-961f-82ee72b054a4