NAME
	FreeTrap -- free a processor trap

   SYNOPSIS
	FreeTrap(trapNum)
		 D0

	void FreeTrap(ULONG);

   FUNCTION
	This function frees a previously allocated trap number for reuse.
	This call must be performed while running in the same task in which
	the trap was allocated.

   WARNING
	Traps may not be allocated or freed from exception handling code.

   INPUTS
	trapNum - the trap number to free {of 0..15}