Revert of Remove SIMD.js from V8.

src/contexts.h

Index: src/contexts.h
diff --git a/src/contexts.h b/src/contexts.h
index a5208e52423ca840b91d8dde6c19f5301aba7730..49a4f92ea07345057450268786b9e58f28f68b22 100644
--- a/src/contexts.h
+++ b/src/contexts.h
@@ -204,6 +204,9 @@
   V(ASYNC_FUNCTION_AWAIT_RESOLVE_SHARED_FUN, SharedFunctionInfo,               \
     async_function_await_resolve_shared_fun)                                   \
   V(ASYNC_FUNCTION_FUNCTION_INDEX, JSFunction, async_function_constructor)     \
+  V(BOOL16X8_FUNCTION_INDEX, JSFunction, bool16x8_function)                    \
+  V(BOOL32X4_FUNCTION_INDEX, JSFunction, bool32x4_function)                    \
+  V(BOOL8X16_FUNCTION_INDEX, JSFunction, bool8x16_function)                    \
   V(BOOLEAN_FUNCTION_INDEX, JSFunction, boolean_function)                      \
   V(BOUND_FUNCTION_WITH_CONSTRUCTOR_MAP_INDEX, Map,                            \
     bound_function_with_constructor_map)                                       \
@@ -227,6 +230,7 @@
   V(FAST_TEMPLATE_INSTANTIATIONS_CACHE_INDEX, FixedArray,                      \
     fast_template_instantiations_cache)                                        \
   V(FLOAT32_ARRAY_FUN_INDEX, JSFunction, float32_array_fun)                    \
+  V(FLOAT32X4_FUNCTION_INDEX, JSFunction, float32x4_function)                  \
   V(FLOAT64_ARRAY_FUN_INDEX, JSFunction, float64_array_fun)                    \
   V(FUNCTION_FUNCTION_INDEX, JSFunction, function_function)                    \
   V(GENERATOR_FUNCTION_FUNCTION_INDEX, JSFunction,                             \
@@ -241,8 +245,11 @@
   V(INITIAL_ITERATOR_PROTOTYPE_INDEX, JSObject, initial_iterator_prototype)    \
   V(INITIAL_OBJECT_PROTOTYPE_INDEX, JSObject, initial_object_prototype)        \
   V(INT16_ARRAY_FUN_INDEX, JSFunction, int16_array_fun)                        \
+  V(INT16X8_FUNCTION_INDEX, JSFunction, int16x8_function)                      \
   V(INT32_ARRAY_FUN_INDEX, JSFunction, int32_array_fun)                        \
+  V(INT32X4_FUNCTION_INDEX, JSFunction, int32x4_function)                      \
   V(INT8_ARRAY_FUN_INDEX, JSFunction, int8_array_fun)                          \
+  V(INT8X16_FUNCTION_INDEX, JSFunction, int8x16_function)                      \
   V(INTERNAL_ARRAY_FUNCTION_INDEX, JSFunction, internal_array_function)        \
   V(ITERATOR_RESULT_MAP_INDEX, Map, iterator_result_map)                       \
   V(INTL_DATE_TIME_FORMAT_FUNCTION_INDEX, JSFunction,                          \
@@ -341,9 +348,12 @@
   V(TYPED_ARRAY_FUN_INDEX, JSFunction, typed_array_function)                   \
   V(TYPED_ARRAY_PROTOTYPE_INDEX, JSObject, typed_array_prototype)              \
   V(UINT16_ARRAY_FUN_INDEX, JSFunction, uint16_array_fun)                      \
+  V(UINT16X8_FUNCTION_INDEX, JSFunction, uint16x8_function)                    \
   V(UINT32_ARRAY_FUN_INDEX, JSFunction, uint32_array_fun)                      \
+  V(UINT32X4_FUNCTION_INDEX, JSFunction, uint32x4_function)                    \
   V(UINT8_ARRAY_FUN_INDEX, JSFunction, uint8_array_fun)                        \
   V(UINT8_CLAMPED_ARRAY_FUN_INDEX, JSFunction, uint8_clamped_array_fun)        \
+  V(UINT8X16_FUNCTION_INDEX, JSFunction, uint8x16_function)                    \
   NATIVE_CONTEXT_INTRINSIC_FUNCTIONS(V)                                        \
   NATIVE_CONTEXT_IMPORTED_FIELDS(V)                                            \
   NATIVE_CONTEXT_JS_ARRAY_ITERATOR_MAPS(V)