* cygtls.cc (_cygtls::remove): Revert previous patch.
	*  cygtls.h (struct _local_storage): Move pathbufs back here.
	(class san/x86_64): Revert class.  Save and restore pathbufs counters
	only.
	(class san/i686): Revert saving and restoring pathbufs counters.
	(__try/x86_64): Add a san variable and call it's setup method.
	(__except/x86_64): Call san::leave to restore pathbufs counters.
	* gendef (_sigbe): Revert previous change.
	* thread.cc (verifyable_object_state): Remove gcc 4.7 workaround in
	forward declaration as well.
	* tls_pbuf.cc (tls_pbuf): Revert previous change.
	* tls_pbuf.h (class tmp_pathbuf): Accommodate reverting pathbufs to
	locals structure.
	* tlsoffsets.h: Regenerate.
	* tlsoffsets64.h: Regenerate.
	* cygtls.cc (_cygtls::remove): Revert previous patch.
	*  cygtls.h (struct _local_storage): Move pathbufs back here.
	(class san/x86_64): Revert class.  Save and restore pathbufs counters
	only.
	(class san/i686): Revert saving and restoring pathbufs counters.
	(__try/x86_64): Add a san variable and call it's setup method.
	(__except/x86_64): Call san::leave to restore pathbufs counters.
	* gendef (_sigbe): Revert previous change.
	* thread.cc (verifyable_object_state): Remove gcc 4.7 workaround in
	forward declaration as well.
	* tls_pbuf.cc (tls_pbuf): Revert previous change.
	* tls_pbuf.h (class tmp_pathbuf): Accommodate reverting pathbufs to
	locals structure.
	* tlsoffsets.h: Regenerate.
	* tlsoffsets64.h: Regenerate.
	* cygtls.cc (san::leave/x86_64): Implement.
	* cygtls.h (class tls_pathbuf): Move counter variables into a union.
	Add 64 bit element _counters covering both counter variables to
	optimize save and restore operations.
	(class san/x86_64): Only store single 64 bit value.
	(san::san/x86_64): Implement.
	(san::leave/x86_64): Only declare here, as returns_twice function.
	Explain why.
	(class san/i686): Change type of _c_cnt and _w_cnt to uint32_t.
	(__try/x86_64): Move definition of __sebastian after the first memory
	barrier.  Drop __sebastian.setup call.
	* cygtls.cc (san::leave/x86_64): Implement.
	* cygtls.h (class tls_pathbuf): Move counter variables into a union.
	Add 64 bit element _counters covering both counter variables to
	optimize save and restore operations.
	(class san/x86_64): Only store single 64 bit value.
	(san::san/x86_64): Implement.
	(san::leave/x86_64): Only declare here, as returns_twice function.
	Explain why.
	(class san/i686): Change type of _c_cnt and _w_cnt to uint32_t.
	(__try/x86_64): Move definition of __sebastian after the first memory
	barrier.  Drop __sebastian.setup call.