[turbofan] First shot at eager deoptimization in Turbofan.

src/runtime/runtime.h

 // Copyright 2012 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.
 
 #ifndef V8_RUNTIME_RUNTIME_H_
 #define V8_RUNTIME_RUNTIME_H_
 
 #include "src/allocation.h"
 #include "src/objects.h"
 #include "src/zone.h"
@@ skipping 44 matching lines @@
   F(PreventExtensions, 1, 1)                   \
                                                \
   /* Utilities */                              \
   F(CheckIsBootstrapping, 0, 1)                \
   F(GetRootNaN, 0, 1)                          \
   F(Call, -1 /* >= 2 */, 1)                    \
   F(Apply, 5, 1)                               \
   F(GetFunctionDelegate, 1, 1)                 \
   F(GetConstructorDelegate, 1, 1)              \
   F(DeoptimizeFunction, 1, 1)                  \
+  F(DeoptimizeNow, 0, 1)                       \
   F(ClearFunctionTypeFeedback, 1, 1)           \
   F(RunningInSimulator, 0, 1)                  \
   F(IsConcurrentRecompilationSupported, 0, 1)  \
   F(OptimizeFunctionOnNextCall, -1, 1)         \
   F(OptimizeOsr, 0, 1)                         \
   F(NeverOptimizeFunction, 1, 1)               \
   F(GetOptimizationStatus, -1, 1)              \
   F(GetOptimizationCount, 1, 1)                \
   F(UnblockConcurrentRecompilation, 0, 1)      \
   F(CompileForOnStackReplacement, 1, 1)        \
@@ skipping 823 matching lines @@
 
 class DeclareGlobalsEvalFlag : public BitField<bool, 0, 1> {};
 class DeclareGlobalsNativeFlag : public BitField<bool, 1, 1> {};
 STATIC_ASSERT(LANGUAGE_END == 3);
 class DeclareGlobalsLanguageMode : public BitField<LanguageMode, 2, 2> {};
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_RUNTIME_RUNTIME_H_