[strong] Remove all remainders of strong mode

src/mips64/builtins-mips64.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_MIPS64
 
 #include "src/codegen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 2531 matching lines @@
     __ ld(a5, MemOperand(a0));
     __ push(a5);
     __ Branch(USE_DELAY_SLOT, &copy, ne, a0, Operand(a4));
     __ daddiu(a0, a0, -kPointerSize);  // In delay slot.
 
     __ 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;
-    __ ld(a4, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset));
-    __ lbu(a5, FieldMemOperand(a4, SharedFunctionInfo::kStrongModeByteOffset));
-    __ And(a5, a5, Operand(1 << SharedFunctionInfo::kStrongModeBitWithinByte));
-    __ Branch(&no_strong_error, eq, a5, Operand(zero_reg));
-
-    // What we really care about is the required number of arguments.
-    DCHECK_EQ(kPointerSize, kInt64Size);
-    __ lw(a5, FieldMemOperand(a4, SharedFunctionInfo::kLengthOffset));
-    __ srl(a5, a5, 1);
-    __ Branch(&no_strong_error, ge, a0, Operand(a5));
-
-    {
-      FrameScope frame(masm, StackFrame::MANUAL);
-      EnterArgumentsAdaptorFrame(masm);
-      __ CallRuntime(Runtime::kThrowStrongModeTooFewArguments);
-    }
-
-    __ bind(&no_strong_error);
     EnterArgumentsAdaptorFrame(masm);
     ArgumentAdaptorStackCheck(masm, &stack_overflow);
 
     // Calculate copy start address into a0 and copy end address into a7.
     // a0: actual number of arguments as a smi
     // a1: function
     // a2: expected number of arguments
     // a3: new target (passed through to callee)
     __ SmiScale(a0, a0, kPointerSizeLog2);
     __ Daddu(a0, fp, a0);
@@ skipping 66 matching lines @@
   }
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS64