fixes Tokutek/ft-index#163 frwlock is properly split into .h and .cc. Users only include .h

ft/cachetable-internal.h

@@ -96,7 +96,6 @@ PATENT RIGHTS GRANT:
 #include "background_job_manager.h"
 #include <portability/toku_random.h>
 #include <util/frwlock.h>
-#include <util/frwlock.cc>
 #include <util/kibbutz.h>
 #include <util/nb_mutex.h>
 #include <util/partitioned_counter.h>

util/CMakeLists.txt

 set(util_srcs
   context
+  frwlock
   kibbutz
   mempool
   partitioned_counter

util/frwlock.cc

@@ -92,6 +92,7 @@ PATENT RIGHTS GRANT:
 #include <toku_assert.h>
 
 #include <util/context.h>
+#include <util/frwlock.h>
 
 namespace toku {
 

util/tests/test-frwlock-fair-writers.cc

@@ -5,7 +5,6 @@
 #include <unistd.h>
 #include <pthread.h>
 #include <util/frwlock.h>
-#include <util/frwlock.cc>
 
 toku_mutex_t rwlock_mutex;
 toku::frwlock rwlock;

util/tests/test-rwlock-cheapness.cc

@@ -99,7 +99,6 @@ PATENT RIGHTS GRANT:
 #include <portability/toku_pthread.h>
 #include <portability/toku_time.h>
 #include <util/frwlock.h>
-#include <util/frwlock.cc>
 #include <util/rwlock.h>
 #include "rwlock_condvar.h"
 

util/tests/test-rwlock.cc

@@ -126,7 +126,6 @@ PATENT RIGHTS GRANT:
 #include <portability/toku_pthread.h>
 #include <portability/toku_time.h>
 #include <util/frwlock.h>
-#include <util/frwlock.cc>
 #include <util/rwlock.h>
 #include "rwlock_condvar.h"