[Isolates] Fix compile under Win32 and presumably for FreeBSD, OpenBS...

src/platform-freebsd.cc

Index: src/platform-freebsd.cc
===================================================================
--- src/platform-freebsd.cc	(revision 5088)
+++ src/platform-freebsd.cc	(working copy)
@@ -404,7 +404,9 @@
 }
 
 
-Thread::Thread() : ThreadHandle(ThreadHandle::INVALID) {
+Thread::Thread(Isolate* isolate)
+    : ThreadHandle(ThreadHandle::INVALID),
+      isolate_(isolate) {
 }
 
 
@@ -419,6 +421,7 @@
   // one) so we initialize it here too.
   thread->thread_handle_data()->thread_ = pthread_self();
   ASSERT(thread->IsValid());
+  Thread::SetThreadLocal(Isolate::isolate_key(), thread->isolate());
   thread->Run();
   return NULL;
 }
@@ -611,8 +614,11 @@
 };
 
 
-Sampler::Sampler(int interval, bool profiling)
-    : interval_(interval), profiling_(profiling), active_(false) {
+Sampler::Sampler(Isolate* isolate, int interval, bool profiling)
+    : isolate_(isolate),
+      interval_(interval),
+      profiling_(profiling),
+      active_(false) {
   data_ = new PlatformData();
 }