A64: Remove Operand constructors where an implicit constructor can be used.

src/a64/debug-a64.cc

 // Copyright 2013 the V8 project authors. 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.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 184 matching lines @@
     }
 
     if (object_regs != 0) {
       __ PushXRegList(object_regs);
     }
 
 #ifdef DEBUG
     __ RecordComment("// Calling from debug break to runtime - come in - over");
 #endif
     __ Mov(x0, 0);  // No arguments.
-    __ Mov(x1, Operand(ExternalReference::debug_break(masm->isolate())));
+    __ Mov(x1, ExternalReference::debug_break(masm->isolate()));
 
     CEntryStub stub(1);
     __ CallStub(&stub);
 
     // Restore the register values from the expression stack.
     if (object_regs != 0) {
       __ PopXRegList(object_regs);
     }
 
     non_object_list =
@@ skipping 11 matching lines @@
     }
 
     // Leave the internal frame.
   }
 
   // Now that the break point has been handled, resume normal execution by
   // jumping to the target address intended by the caller and that was
   // overwritten by the address of DebugBreakXXX.
   ExternalReference after_break_target(Debug_Address::AfterBreakTarget(),
                                        masm->isolate());
-  __ Mov(scratch, Operand(after_break_target));
+  __ Mov(scratch, after_break_target);
   __ Ldr(scratch, MemOperand(scratch));
   __ Br(scratch);
 }
 
 
 void Debug::GenerateLoadICDebugBreak(MacroAssembler* masm) {
   // Calling convention for IC load (from ic-arm.cc).
   // ----------- S t a t e -------------
   //  -- x2    : name
   //  -- lr    : return address
@@ skipping 136 matching lines @@
   masm->Abort(kLiveEditFrameDroppingIsNotSupportedOnA64);
 }
 
 const bool Debug::kFrameDropperSupported = false;
 
 #endif  // ENABLE_DEBUGGER_SUPPORT
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_A64