Add a MathFloor stub generated with 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 31 matching lines @@
   F(ArrayConstructor, -1, 1)                                          \
   F(ArrayConstructorWithSubclassing, -1, 1)                           \
   F(InternalArrayConstructor, -1, 1)                                  \
   F(NormalizeElements, 1, 1)                                          \
   F(GrowArrayElements, 3, 1)                                          \
   F(HasComplexElements, 1, 1)                                         \
   F(ForInCacheArrayLength, 2, 1) /* TODO(turbofan): Only temporary */ \
   F(IsArray, 1, 1)                                                    \
   F(HasCachedArrayIndex, 1, 1)                                        \
   F(GetCachedArrayIndex, 1, 1)                                        \
+  F(GetTypeFeedbackVector, 1, 1)                                      \
+  F(FixedArrayGet, 2, 1)                                              \
+  F(FixedArraySet, 3, 1)                                              \
   F(FastOneByteArrayJoin, 2, 1)
 
 
 #define FOR_EACH_INTRINSIC_CLASSES(F)         \
   F(ThrowNonMethodError, 0, 1)                \
   F(ThrowUnsupportedSuperError, 0, 1)         \
   F(ThrowConstructorNonCallableError, 0, 1)   \
   F(ThrowArrayNotSubclassableError, 0, 1)     \
   F(ThrowStaticPrototypeError, 0, 1)          \
   F(ThrowIfStaticPrototype, 1, 1)             \
   F(ToMethod, 2, 1)                           \
   F(HomeObjectSymbol, 0, 1)                   \
   F(DefineClass, 6, 1)                        \
   F(DefineClassMethod, 3, 1)                  \
   F(ClassGetSourceCode, 1, 1)                 \
   F(LoadFromSuper, 3, 1)                      \
   F(LoadKeyedFromSuper, 3, 1)                 \
   F(StoreToSuper_Strict, 4, 1)                \
   F(StoreToSuper_Sloppy, 4, 1)                \
   F(StoreKeyedToSuper_Strict, 4, 1)           \
   F(StoreKeyedToSuper_Sloppy, 4, 1)           \
   F(HandleStepInForDerivedConstructors, 1, 1) \
   F(DefaultConstructorCallSuper, 0, 1)        \
   F(CallSuperWithSpread, 0, 1)
 
 
 #define FOR_EACH_INTRINSIC_COLLECTIONS(F) \
   F(StringGetRawHashField, 1, 1)          \
   F(TheHole, 0, 1)                        \
-  F(FixedArrayGet, 2, 1)                  \
-  F(FixedArraySet, 3, 1)                  \
   F(JSCollectionGetTable, 1, 1)           \
   F(GenericHash, 1, 1)                    \
   F(SetInitialize, 1, 1)                  \
   F(SetGrow, 1, 1)                        \
   F(SetShrink, 1, 1)                      \
   F(SetClear, 1, 1)                       \
   F(SetIteratorInitialize, 3, 1)          \
   F(SetIteratorClone, 1, 1)               \
   F(SetIteratorNext, 2, 1)                \
   F(SetIteratorDetails, 1, 1)             \
@@ skipping 773 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_