gdb/

gdb/
	PR 14119
	* frame.c (skip_inlined_frames): Skip also TAILCALL_FRAME frames.
	(frame_pop): Drop also TAILCALL_FRAME frames.
	* infcmd.c (finish_command): Ignore also TAILCALL_FRAME frames.

gdb/testsuite/
	PR 14119
	* gdb.arch/amd64-tailcall-ret.S: New file.
	* gdb.arch/amd64-tailcall-ret.c: New file.
	* gdb.arch/amd64-tailcall-ret.exp: New file.
	* gdb.reverse/amd64-tailcall-reverse.S: New file.
	* gdb.reverse/amd64-tailcall-reverse.c: New file.
	* gdb.reverse/amd64-tailcall-reverse.exp: New file.