[strong] Remove all remainders of strong mode

src/x87/builtins-x87.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_X87
 
 #include "src/code-factory.h"
 #include "src/codegen.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 2421 matching lines @@
     __ sub(edi, Immediate(kPointerSize));
     __ cmp(eax, ebx);
     __ j(less, &copy);
     // eax now contains the expected number of arguments.
     __ 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;
-    __ mov(ecx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset));
-    __ test_b(FieldOperand(ecx, SharedFunctionInfo::kStrongModeByteOffset),
-              1 << SharedFunctionInfo::kStrongModeBitWithinByte);
-    __ j(equal, &no_strong_error, Label::kNear);
-
-    // What we really care about is the required number of arguments.
-    __ mov(ecx, FieldOperand(ecx, SharedFunctionInfo::kLengthOffset));
-    __ SmiUntag(ecx);
-    __ cmp(eax, ecx);
-    __ 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);
 
     // Remember expected arguments in ecx.
     __ mov(ecx, ebx);
 
     // Copy receiver and all actual arguments.
     const int offset = StandardFrameConstants::kCallerSPOffset;
     __ lea(edi, Operand(ebp, eax, times_4, offset));
     // ebx = expected - actual.
@@ skipping 216 matching lines @@
 
   __ bind(&ok);
   __ ret(0);
 }
 
 #undef __
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X87