*ping* [Patch, Fortran] PR35203 - Fix VALUE + OPTIONAL handling for pass-by-value arguments

[W Spector]

Tobias,

I am wondering if your implementation is compatible with what IBM did in 
their compiler:

http://publib.boulder.ibm.com/infocenter/comphelp/v8v101/index.jsp?topic=%2Fcom.ibm.xlf101a.doc%2Fxlfopg%2Finterlang-passdata.htm

In it, the order of arguments passed is:

   * All addresses or values (or both) of actual arguments
   * "Present" indicators for optional VALUE arguments
   * Length arguments for strings

Note that they set each "Present" indicator to zero if the argument is 
not present, and 1 if the argument is present.

Walter