uv: revert change causing build failures

Revert uv_thread_self() to return unsigned long instead of uv_thread_t.
This was causing a build failure on Windows and is only a temporary fix
until the proper patch lands upstream.

Reverts: joyent/libuv@59658a8
Fixes: ce112c2 "deps: update uv to v1.0.0-rc2"

Author: trevnorris

deps/uv/Makefile.am

@@ -206,7 +206,6 @@ test_run_tests_SOURCES = test/blackhole-server.c \
                          test/test-tcp-writealot.c \
                          test/test-tcp-try-write.c \
                          test/test-tcp-write-queue-order.c \
-                         test/test-thread-equal.c \
                          test/test-thread.c \
                          test/test-threadpool-cancel.c \
                          test/test-threadpool.c \

deps/uv/docs/src/threading.rst

@@ -58,7 +58,6 @@ Threads
 .. c:function:: int uv_thread_create(uv_thread_t* tid, uv_thread_cb entry, void* arg)
 .. c:function:: unsigned long uv_thread_self(void)
 .. c:function:: int uv_thread_join(uv_thread_t *tid)
-.. c:function:: int uv_thread_equal(const uv_thread_t* t1, const uv_thread_t* t2)
 
 Thread-local storage
 ^^^^^^^^^^^^^^^^^^^^

deps/uv/include/uv.h

@@ -1369,9 +1369,8 @@ UV_EXTERN void uv_key_set(uv_key_t* key, void* value);
 typedef void (*uv_thread_cb)(void* arg);
 
 UV_EXTERN int uv_thread_create(uv_thread_t* tid, uv_thread_cb entry, void* arg);
-UV_EXTERN uv_thread_t uv_thread_self(void);
+UV_EXTERN unsigned long uv_thread_self(void);
 UV_EXTERN int uv_thread_join(uv_thread_t *tid);
-UV_EXTERN int uv_thread_equal(const uv_thread_t* t1, const uv_thread_t* t2);
 
 /* The presence of these unions force similar struct layout. */
 #define XX(_, name) uv_ ## name ## _t name;

deps/uv/src/unix/thread.c

@@ -36,11 +36,6 @@ int uv_thread_join(uv_thread_t *tid) {
 }
 
 
-int uv_thread_equal(const uv_thread_t* t1, const uv_thread_t* t2) {
-  return pthread_equal(*t1, *t2);
-}
-
-
 int uv_mutex_init(uv_mutex_t* mutex) {
 #if defined(NDEBUG) || !defined(PTHREAD_MUTEX_ERRORCHECK)
   return -pthread_mutex_init(mutex, NULL);

deps/uv/src/uv-common.c

@@ -306,11 +306,11 @@ int uv_thread_create(uv_thread_t *tid, void (*entry)(void *arg), void *arg) {
 }
 
 
-uv_thread_t uv_thread_self(void) {
+unsigned long uv_thread_self(void) {
 #ifdef _WIN32
-  return GetCurrentThreadId();
+  return (unsigned long) GetCurrentThreadId();
 #else
-  return pthread_self();
+  return (unsigned long) pthread_self();
 #endif
 }
 

deps/uv/src/win/thread.c

@@ -129,11 +129,6 @@ int uv_thread_join(uv_thread_t *tid) {
 }
 
 
-int uv_thread_equal(const uv_thread_t* t1, const uv_thread_t* t2) {
-  return *t1 == *t2;
-}
-
-
 int uv_mutex_init(uv_mutex_t* mutex) {
   InitializeCriticalSection(mutex);
   return 0;

deps/uv/test/test-list.h

@@ -259,7 +259,6 @@ TEST_DECLARE   (thread_local_storage)
 TEST_DECLARE   (thread_mutex)
 TEST_DECLARE   (thread_rwlock)
 TEST_DECLARE   (thread_create)
-TEST_DECLARE   (thread_equal)
 TEST_DECLARE   (dlerror)
 TEST_DECLARE   (poll_duplex)
 TEST_DECLARE   (poll_unidirectional)
@@ -633,7 +632,6 @@ TASK_LIST_START
   TEST_ENTRY  (thread_mutex)
   TEST_ENTRY  (thread_rwlock)
   TEST_ENTRY  (thread_create)
-  TEST_ENTRY  (thread_equal)
   TEST_ENTRY  (dlerror)
   TEST_ENTRY  (ip4_addr)
   TEST_ENTRY  (ip6_addr_link_local)

deps/uv/test/test-thread-equal.c

@@ -410,7 +410,6 @@
         'test/test-tcp-write-queue-order.c',
         'test/test-threadpool.c',
         'test/test-threadpool-cancel.c',
-        'test/test-thread-equal.c',
         'test/test-mutexes.c',
         'test/test-thread.c',
         'test/test-barrier.c',