Parser – Table Instance Member

From the last change, most uses of the table instance reference member of the parser class was removed; replaced with use of static table functions.  The last two uses were for setting of the code (plus type and data type) for constant tokens.  For constant string tokens, the setting of the token code was moved to the token constructor for string constants.

The other use of the table instance was for number constants also in the main function operator function of the parser, but with some statements to determine from the desired data type what the data type of the number constant should be and whether to set the Integer Constant sub-code.  These statements and the setting of the code of the token were moved to the token constructors for integer and double constants.

For integer constant tokens, the data type is set to integer unless the desired data type is double.  There is no need to for the Integer Constant sub-code since the constant is an integer.  For double constant tokens, if the value is within the integer range, the Integer Constant is only set if the desired data type is not an integer or double.  If the desired data type is indeterminate (Number or Any) then the data type of the token is set to Double.  For values outside the integer range, the data type is set to Double.

The table instance reference member was removed since it was no longer being used.  The remaining parser constructor was only initializing the input string stream member, so it was moved to and made in-line in the header file.

[branch table commit b89a1b663b]