message: Add IsMetadataOp() flag to VariableShape Op.
diff: @@ -59,7 +59,8 @@ class VariableShapeOp : public XlaOpKernel {
  private:
  DataType out_dtype_;
  };
  -REGISTER_XLA_OP(Name("VariableShape").CompilationOnly(), VariableShapeOp);
  +REGISTER_XLA_OP(Name("VariableShape").CompilationOnly().IsMetadataOp(),
  + VariableShapeOp);
  class ReadVariableOp : public XlaOpKernel {
  public:
  