Use list of isolates in profiler

runtime/vm/thread_interrupter_win.cc

Index: runtime/vm/thread_interrupter_win.cc
diff --git a/runtime/vm/thread_interrupter_win.cc b/runtime/vm/thread_interrupter_win.cc
index c933cbb73c98c866a59e8c0dc75fce17417811cb..be4745110c7cbebe7f7dca33a9582a268951e288 100644
--- a/runtime/vm/thread_interrupter_win.cc
+++ b/runtime/vm/thread_interrupter_win.cc
@@ -38,7 +38,7 @@ class ThreadInterrupterWin : public AllStatic {
   }
 
 
-  static void Interrupt(ThreadInterrupter::ThreadState* state) {
+  static void Interrupt(InterruptedThreadState* state) {
     ASSERT(GetCurrentThread() != state->id);
     DWORD result = SuspendThread(state->id);
     if (result == kThreadError) {
@@ -71,8 +71,13 @@ class ThreadInterrupterWin : public AllStatic {
 
 
 void ThreadInterrupter::InterruptThreads(int64_t current_time) {
-  for (intptr_t i = 0; i < threads_size_; i++) {
-    ThreadState* state = threads_[i];
+  for (intptr_t i = 0; i < Isolate::isolates_size_; i++) {
+    Isolate* isolate = Isolate::isolates_[i];
+    ASSERT(isolate != NULL);
+    InterruptedThreadState* state = isolate->thread_state();
+    if (state == NULL) {
+      continue;
+    }
     ASSERT(state->id != Thread::kInvalidThreadId);
     if (FLAG_trace_thread_interrupter) {
       OS::Print("ThreadInterrupter suspending %p\n",