Reduce size of test StackLimitInterrupts to avoid Win timeouts.

runtime/vm/isolate_test.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/globals.h"
 #include "vm/isolate.h"
 #include "vm/lockers.h"
 #include "vm/thread_pool.h"
@@ skipping 131 matching lines @@
 
  private:
   Isolate* isolate_;
   Monitor* awake_monitor_;
   bool* awake_;
   Monitor* round_monitor_;
   const intptr_t* round_;
 };
 
 
-const intptr_t InterruptChecker::kTaskCount = 50;
-const intptr_t InterruptChecker::kIterations = 1000;
+const intptr_t InterruptChecker::kTaskCount = 5;
+const intptr_t InterruptChecker::kIterations = 10;
 
 
 // Waits for all tasks to set their individual flag, then clears them all.
 static void WaitForAllTasks(bool* flags, Monitor* monitor) {
   MonitorLocker ml(monitor);
   while (true) {
     intptr_t count = 0;
     for (intptr_t task = 0; task < InterruptChecker::kTaskCount; ++task) {
       if (flags[task]) {
         ++count;
@@ skipping 42 matching lines @@
       MonitorLocker ml(&round_monitor);
       ++round;
       ml.NotifyAll();
     }
   }
   // Wait for tasks to exit cleanly.
   WaitForAllTasks(awake, &awake_monitor);
 }
 
 }  // namespace dart