[runtime] Introduce FastNewStrictArgumentsStub to optimize strict arguments.

src/arm64/builtins-arm64.cc

Index: src/arm64/builtins-arm64.cc
diff --git a/src/arm64/builtins-arm64.cc b/src/arm64/builtins-arm64.cc
index 91f4150f5c6cc9bf3e0170017eb3c685f7dd90c7..0840eb952b2a45cab665b0715820e6d3701da433 100644
--- a/src/arm64/builtins-arm64.cc
+++ b/src/arm64/builtins-arm64.cc
@@ -1974,10 +1974,8 @@ void Builtins::Generate_Apply(MacroAssembler* masm) {
 
     // Try to create the list from an arguments object.
     __ Bind(&create_arguments);
-    __ Ldrsw(len, UntagSmiFieldMemOperand(
-                      arguments_list,
-                      JSObject::kHeaderSize +
-                          Heap::kArgumentsLengthIndex * kPointerSize));
+    __ Ldrsw(len, UntagSmiFieldMemOperand(arguments_list,
+                                          JSArgumentsObject::kLengthOffset));
     __ Ldr(x10, FieldMemOperand(arguments_list, JSObject::kElementsOffset));
     __ Ldrsw(x11, UntagSmiFieldMemOperand(x10, FixedArray::kLengthOffset));
     __ CompareAndBranch(len, x11, ne, &create_runtime);