Changed reference to Ch21 Strings in comments in experimental/string_view*.
Forgot this in the main patch.  Sorry.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@204903 138bc75d-0d04-0410-961f-82ee72b054a4
	* backtrace.h (backtrace_syminfo): Update comment and parameter
	name to take any address, not just a PC value.
	* elf.c (STT_OBJECT): Define.
	(elf_nosyms): Rename parameter pc to addr.
	(elf_symbol_search): Rename local variable pc to addr.
	(elf_initialize_syminfo): Add STT_OBJECT symbols to elf_symbols.
	(elf_syminfo): Rename parameter pc to addr.
	* btest.c (global): New global variable.
	(test5): New test.
	(main): Call test5.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@204904 138bc75d-0d04-0410-961f-82ee72b054a4
	* backtrace.h (backtrace_create_state): Correct comment about
	threading.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@204905 138bc75d-0d04-0410-961f-82ee72b054a4