Fuchsia: Paralellize VM test wrapper. Update statuses for Fuchsia update

runtime/vm/os_fuchsia.cc

 // Copyright (c) 2016, 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 "vm/globals.h"
 #if defined(TARGET_OS_FUCHSIA)
 
 #include "vm/os.h"
 
 #include <errno.h>
@@ skipping 12 matching lines @@
     "Generate events symbols for profiling with perf");
 
 #endif  // !PRODUCT
 
 const char* OS::Name() {
   return "fuchsia";
 }
 
 
 intptr_t OS::ProcessId() {
-  UNIMPLEMENTED();
-  return 0;
+  return static_cast<intptr_t>(getpid());
 }
 
 
 const char* OS::GetTimeZoneName(int64_t seconds_since_epoch) {
   UNIMPLEMENTED();
   return "";
 }
 
 
 int OS::GetTimeZoneOffsetInSeconds(int64_t seconds_since_epoch) {
@@ skipping 259 matching lines @@
 }
 
 
 void OS::Exit(int code) {
   UNIMPLEMENTED();
 }
 
 }  // namespace dart
 
 #endif  // defined(TARGET_OS_FUCHSIA)