[esnext] prototype runtime implementation for async functions

src/profiler/sampler.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/profiler/sampler.h"
 
 #if V8_OS_POSIX && !V8_OS_CYGWIN
 
 #define USE_SIGNALS
 
@@ skipping 316 matching lines @@
 
  private:
   HANDLE profiled_thread_;
 };
 #endif
 
 
 #if defined(USE_SIMULATOR)
 bool SimulatorHelper::FillRegisters(Isolate* isolate,
                                     v8::RegisterState* state) {
-  Simulator *simulator = isolate->thread_local_top()->simulator_;
+  Simulator* simulator = isolate->thread_local_top()->simulator_;

[caitp (gmail), 2016/05/06 18:46:55]

This is `git cl format`'s doing, heh :( I'll try to fix the unnecessary things
that it snuck in

   // Check if there is active simulator.
   if (simulator == NULL) return false;
 #if V8_TARGET_ARCH_ARM
   if (!simulator->has_bad_pc()) {
     state->pc = reinterpret_cast<Address>(simulator->get_pc());
   }
   state->sp = reinterpret_cast<Address>(simulator->get_register(Simulator::sp));
-  state->fp = reinterpret_cast<Address>(simulator->get_register(
-      Simulator::r11));
+  state->fp =
+      reinterpret_cast<Address>(simulator->get_register(Simulator::r11));
 #elif V8_TARGET_ARCH_ARM64
   state->pc = reinterpret_cast<Address>(simulator->pc());
   state->sp = reinterpret_cast<Address>(simulator->sp());
   state->fp = reinterpret_cast<Address>(simulator->fp());
 #elif V8_TARGET_ARCH_MIPS || V8_TARGET_ARCH_MIPS64
   if (!simulator->has_bad_pc()) {
     state->pc = reinterpret_cast<Address>(simulator->get_pc());
   }
   state->sp = reinterpret_cast<Address>(simulator->get_register(Simulator::sp));
   state->fp = reinterpret_cast<Address>(simulator->get_register(Simulator::fp));
@@ skipping 673 matching lines @@
     SampleStack(state);
   }
   ResumeThread(profiled_thread);
 }
 
 #endif  // USE_SIGNALS
 
 
 }  // namespace internal
 }  // namespace v8