Fix HasOutput for more than one output

Change-Id: I9cab4e35c356a1fdd9942bd54832e7a375cd0800
Reviewed-on: https://chromium-review.googlesource.com/1152162Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54739}

src/compiler/instruction.h

@@ -811,7 +811,7 @@ class V8_EXPORT_PRIVATE Instruction final {
     return &operands_[i];
   }
 
-  bool HasOutput() const { return OutputCount() == 1; }
+  bool HasOutput() const { return OutputCount() > 0; }
   const InstructionOperand* Output() const { return OutputAt(0); }
   InstructionOperand* Output() { return OutputAt(0); }