gdb

gdb
	PR exp/11803:
	* value.c (value_static_field): Use value_of_variable.
gdb/testsuite
	PR exp/11803:
	* gdb.threads/tls.exp: Use C++.
	(check_thread_local): Use K::another_thread_local.
	* gdb.threads/tls.c (class K): New.
	(another_thread_local): Now a member of K.
	(spin): Update.  No longer K&R C.