inline_application():   several problems fixed.   1) if a formal or a 'varref' arg is assigned to, force it to be a 'complex' inline rather than a 'simple' one.   2) commented out the 'complex arg used only once' hack.  this was breaking tests/t_stack.scm, obvious in retrospect. substitute():   this was completely failing with varset nodes, fixed.
inline_application():
  several problems fixed.
  1) if a formal or a 'varref' arg is assigned to, force it to be a 'complex' inline rather than a 'simple' one.
  2) commented out the 'complex arg used only once' hack.  this was breaking tests/t_stack.scm, obvious in retrospect.
substitute():
  this was completely failing with varset nodes, fixed.


samrushing/irken-compiler,samrushing/irken-compiler,samrushing/irken-compiler,samrushing/irken-compiler