X64: Fixed test .status format, and made test.py forward arch to scons.

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 700 matching lines @@
   }
 
   void shl(Register dst) {
     shift(dst, 0x4);
   }
 
   void shll(Register dst) {
     shift_32(dst, 0x4);
   }
 
+  void shll(Register dst, Immediate shift_amount) {
+    shift_32(dst, shift_amount, 0x4);
+  }
+
   void shr(Register dst, Immediate shift_amount) {
     shift(dst, shift_amount, 0x5);
   }
 
   void shr(Register dst) {
     shift(dst, 0x5);
   }
 
   void shrl(Register dst) {
     shift_32(dst, 0x5);
@@ skipping 468 matching lines @@
  private:
   Assembler* assembler_;
 #ifdef DEBUG
   int space_before_;
 #endif
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_X64_ASSEMBLER_X64_H_