Code:
; script1.mrc
alias one {
  two 
}
...
...
alias two {
  echo -s this alias was called from the alias $falias on line $fscriptline in $fscript
}


two would then echo "this alias was called from the alias one on line 3 in ...\script1.mrc". Get it?

$calias would return the name of the currently executing alias (or maybe $alias with no parameters could be changed to do this).