dwarf2out.c: Add old_args_size.

dwarf2out.c: Add old_args_size.

	* dwarf2out.c: Add old_args_size.
	(dwarf2out_args_size): Use it.
	(dwarf2out_begin_prologue): Initialize it.
	(dwarf2out_stack_adjust): If !asynchronous_exceptions, save up
	pushed args until we see a call.
	* final.c (final_scan_insn): Hand CALL_INSNs off to the dwarf2 code
	before outputting them.
	* cplus-dem.c (demangle_template_template_parm): New function.
	(demangle_template): Handle template template parameters.

From-SVN: r17685