Conformant arrays are a feature of Modula-2, and perhaps other
languages, in which the size of an array parameter is not known to the
called function until run-time. Such parameters have two stabs: a
x for the array itself, and a C, which represents the size
of the array. The value of the x stab is the offset in the
argument list where the address of the array is stored (it this right?
it is a guess); the value of the C stab is the offset in the
argument list where the size of the array (in elements? in bytes?) is
stored.