Implement lowering of JSLoadContext to machine operators.

src/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_H_
 #define V8_RUNTIME_H_
 
 #include "src/allocation.h"
 #include "src/zone.h"
 
@@ skipping 461 matching lines @@
                                                                      \
   /* Contexts */                                                     \
   F(NewGlobalContext, 2, 1)                                          \
   F(NewFunctionContext, 1, 1)                                        \
   F(PushWithContext, 2, 1)                                           \
   F(PushCatchContext, 3, 1)                                          \
   F(PushBlockContext, 2, 1)                                          \
   F(PushModuleContext, 2, 1)                                         \
   F(DeleteLookupSlot, 2, 1)                                          \
   F(LoadLookupSlot, 2, 2)                                            \
-  F(LoadContextRelative, 3, 1) /* TODO(turbofan): Only temporary */  \
   F(LoadLookupSlotNoReferenceError, 2, 2)                            \
   F(StoreLookupSlot, 4, 1)                                           \
   F(StoreContextRelative, 4, 1) /* TODO(turbofan): Only temporary */ \
                                                                      \
   /* Declarations and initialization */                              \
   F(DeclareGlobals, 3, 1)                                            \
   F(DeclareModules, 1, 1)                                            \
   F(DeclareLookupSlot, 4, 1)                                         \
   F(InitializeConstGlobal, 2, 1)                                     \
   F(InitializeLegacyConstLookupSlot, 3, 1)                           \
@@ skipping 409 matching lines @@
 class AllocateDoubleAlignFlag:  public BitField<bool,            0, 1> {};
 class AllocateTargetSpace:      public BitField<AllocationSpace, 1, 3> {};
 
 class DeclareGlobalsEvalFlag:   public BitField<bool,       0, 1> {};
 class DeclareGlobalsNativeFlag: public BitField<bool,       1, 1> {};
 class DeclareGlobalsStrictMode: public BitField<StrictMode, 2, 1> {};
 
 } }  // namespace v8::internal
 
 #endif  // V8_RUNTIME_H_