[strong] Implement strong property access semantics

src/builtins.h

Index: src/builtins.h
diff --git a/src/builtins.h b/src/builtins.h
index 15ee53b6bd8d504c928fd94272dddf518b117585..a94c7bd147892de9ffcbfefa19bd0d2da458bbcb 100644
--- a/src/builtins.h
+++ b/src/builtins.h
@@ -87,9 +87,11 @@ enum BuiltinExtraArguments {
   V(StoreIC_Miss, BUILTIN, UNINITIALIZED, kNoExtraICState)                   \
   V(KeyedStoreIC_Miss, BUILTIN, UNINITIALIZED, kNoExtraICState)              \
   V(LoadIC_Getter_ForDeopt, LOAD_IC, MONOMORPHIC, kNoExtraICState)           \
-  V(KeyedLoadIC_Initialize, KEYED_LOAD_IC, UNINITIALIZED, kNoExtraICState)   \
   V(KeyedLoadIC_Megamorphic, KEYED_LOAD_IC, MEGAMORPHIC, kNoExtraICState)    \
                                                                              \
+  V(KeyedLoadIC_Megamorphic_Strong, KEYED_LOAD_IC, MEGAMORPHIC,              \
+    LoadICState::kStrongModeState)                                           \
+                                                                             \
   V(StoreIC_Setter_ForDeopt, STORE_IC, MONOMORPHIC,                          \
     StoreICState::kStrictModeState)                                          \
                                                                              \
@@ -105,7 +107,6 @@ enum BuiltinExtraArguments {
   V(KeyedStoreIC_Megamorphic_Strict, KEYED_STORE_IC, MEGAMORPHIC,            \
     StoreICState::kStrictModeState)                                          \
                                                                              \
-  /* Uses KeyedLoadIC_Initialize; must be after in list. */                  \
   V(FunctionCall, BUILTIN, UNINITIALIZED, kNoExtraICState)                   \
   V(FunctionApply, BUILTIN, UNINITIALIZED, kNoExtraICState)                  \
   V(ReflectApply, BUILTIN, UNINITIALIZED, kNoExtraICState)                   \
@@ -127,13 +128,16 @@ enum BuiltinExtraArguments {
   CODE_AGE_LIST_WITH_ARG(DECLARE_CODE_AGE_BUILTIN, V)
 
 // Define list of builtin handlers implemented in assembly.
-#define BUILTIN_LIST_H(V)                                               \
-  V(LoadIC_Slow,                    LOAD_IC)                            \
-  V(KeyedLoadIC_Slow,               KEYED_LOAD_IC)                      \
-  V(StoreIC_Slow,                   STORE_IC)                           \
-  V(KeyedStoreIC_Slow,              KEYED_STORE_IC)                     \
-  V(LoadIC_Normal,                  LOAD_IC)                            \
-  V(StoreIC_Normal,                 STORE_IC)
+#define BUILTIN_LIST_H(V)                    \
+  V(LoadIC_Slow,             LOAD_IC)        \
+  V(LoadIC_Slow_Strong,      LOAD_IC)        \
+  V(KeyedLoadIC_Slow,        KEYED_LOAD_IC)  \
+  V(KeyedLoadIC_Slow_Strong, KEYED_LOAD_IC)  \
+  V(StoreIC_Slow,            STORE_IC)       \
+  V(KeyedStoreIC_Slow,       KEYED_STORE_IC) \
+  V(LoadIC_Normal,           LOAD_IC)        \
+  V(LoadIC_Normal_Strong,    LOAD_IC)        \
+  V(StoreIC_Normal,          STORE_IC)
 
 // Define list of builtins used by the debugger implemented in assembly.
 #define BUILTIN_LIST_DEBUG_A(V)                                               \