X64: Fix error in division & modulus, adjust mjsunit test status, fix lint er...

src/x64/assembler-x64.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // All Rights Reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 // - Redistributions of source code must retain the above copyright notice,
 // this list of conditions and the following disclaimer.
 //
@@ skipping 614 matching lines @@
     immediate_arithmetic_op(0x4, dst, src);
   }
 
   void decq(Register dst);
   void decq(const Operand& dst);
   void decl(Register dst);
   void decl(const Operand& dst);
 
   // Sign-extends rax into rdx:rax.
   void cqo();
+  // Sign-extends eax into edx:eax.
+  void cdq();
 
   // Divide rdx:rax by src.  Quotient in rax, remainder in rdx.
-  void idiv(Register src);
+  void idivq(Register src);
+  // Divide edx:eax by lower 32 bits of src.  Quotient in eax, rem. in edx.
+  void idivl(Register src);
 
   // Signed multiply instructions.
   void imul(Register src);                               // rdx:rax = rax * src.
   void imul(Register dst, Register src);                 // dst = dst * src.
   void imul(Register dst, const Operand& src);           // dst = dst * src.
   void imul(Register dst, Register src, Immediate imm);  // dst = src * imm.
   // Multiply 32 bit registers
   void imull(Register dst, Register src);                // dst = dst * src.
 
   void incq(Register dst);
@@ skipping 563 matching lines @@
  private:
   Assembler* assembler_;
 #ifdef DEBUG
   int space_before_;
 #endif
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_X64_ASSEMBLER_X64_H_