better name for var_integer et.al.

[Andrew Cagney]

Hello,

GDB has the variable types:

  /* Unsigned Integer.  *VAR is an unsigned int.  The user can type 0
     to mean "unlimited", which is stored in *VAR as UINT_MAX.  */
  var_uinteger,

  /* Like var_uinteger but signed.  *VAR is an int.  The user can type 0
     to mean "unlimited", which is stored in *VAR as INT_MAX.  */
  var_integer,

  /* ZeroableInteger.  *VAR is an int.  Like Unsigned Integer except
     that zero really means zero.  */
  var_zinteger,

I think calling something "integer" or "unsigned integer" but then not 
allowing the value zero is just plain weird.

Would anyone have better names for the first two?

Andrew