[strong] Remove all remainders of strong mode

src/x64/builtins-x64.cc

 // 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.
 
 #if V8_TARGET_ARCH_X64
 
 #include "src/code-factory.h"
 #include "src/codegen.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 1791 matching lines @@
     __ Push(Operand(rax, 0));
     __ subp(rax, Immediate(kPointerSize));
     __ cmpp(r8, rbx);
     __ j(less, &copy);
     __ jmp(&invoke);
   }
 
   {  // Too few parameters: Actual < expected.
     __ bind(&too_few);
 
-    // If the function is strong we need to throw an error.
-    Label no_strong_error;
-    __ movp(kScratchRegister,
-            FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset));
-    __ testb(FieldOperand(kScratchRegister,
-                          SharedFunctionInfo::kStrongModeByteOffset),
-             Immediate(1 << SharedFunctionInfo::kStrongModeBitWithinByte));
-    __ j(equal, &no_strong_error, Label::kNear);
-
-    // What we really care about is the required number of arguments.
-
-    if (kPointerSize == kInt32Size) {
-      __ movp(
-          kScratchRegister,
-          FieldOperand(kScratchRegister, SharedFunctionInfo::kLengthOffset));
-      __ SmiToInteger32(kScratchRegister, kScratchRegister);
-    } else {
-      // See comment near kLengthOffset in src/objects.h
-      __ movsxlq(
-          kScratchRegister,
-          FieldOperand(kScratchRegister, SharedFunctionInfo::kLengthOffset));
-      __ shrq(kScratchRegister, Immediate(1));
-    }
-
-    __ cmpp(rax, kScratchRegister);
-    __ j(greater_equal, &no_strong_error, Label::kNear);
-
-    {
-      FrameScope frame(masm, StackFrame::MANUAL);
-      EnterArgumentsAdaptorFrame(masm);
-      __ CallRuntime(Runtime::kThrowStrongModeTooFewArguments);
-    }
-
-    __ bind(&no_strong_error);
     EnterArgumentsAdaptorFrame(masm);
     ArgumentsAdaptorStackCheck(masm, &stack_overflow);
 
     // Copy receiver and all actual arguments.
     const int offset = StandardFrameConstants::kCallerSPOffset;
     __ leap(rdi, Operand(rbp, rax, times_pointer_size, offset));
     __ Set(r8, -1);  // account for receiver
 
     Label copy;
     __ bind(&copy);
@@ skipping 830 matching lines @@
   __ ret(0);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X64