Dead code eliminator is eliminating proc calls with side effects

[dplassgit]

a: proc {
  println "hi"
}
b: proc {
  x = a()
}
b()

should print "hi" but it does not because x=a() is completely eliminated because x is considered dead

[dplassgit]

A workaround is to just remove the assignment, e.g., a()

[dplassgit]

The workaround works because naked proc calls generate different code than proc calls whose return value is read.