Rename some x64 macros to be more precise about their semantics.

src/x64/builtins-x64.cc

 // Copyright 2009 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 697 matching lines @@
   __ IncrementCounter(&Counters::array_function_native, 1);
   __ movq(rax, rbx);
   __ ret(kPointerSize);
 
   // Check for one argument. Bail out if argument is not smi or if it is
   // negative.
   __ bind(&argc_one_or_more);
   __ cmpq(rax, Immediate(1));
   __ j(not_equal, &argc_two_or_more);
   __ movq(rdx, Operand(rsp, kPointerSize));  // Get the argument from the stack.
-  __ JumpIfNotPositiveSmi(rdx, call_generic_code);
+  __ JumpUnlessNonNegativeSmi(rdx, call_generic_code);
 
   // Handle construction of an empty array of a certain size. Bail out if size
   // is to large to actually allocate an elements array.
   __ SmiCompare(rdx, Smi::FromInt(JSObject::kInitialMaxFastElementArray));
   __ j(greater_equal, call_generic_code);
 
   // rax: argc
   // rdx: array_size (smi)
   // rdi: constructor
   // esp[0]: return address
@@ skipping 614 matching lines @@
   __ LeaveInternalFrame();
 
   // Do a tail-call of the compiled function.
   __ lea(rcx, FieldOperand(rax, Code::kHeaderSize));
   __ jmp(rcx);
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64