ASSIGN_LEFT:
Substitutor: null

ASSIGN_RIGHT:
Substitutor: <map substitutor: {T = kotlin/Number}>
Substituted pairs:
kotlin/Number <: kotlin/Number (Original: kotlin/Number <: T)

ASSIGN_ALL:
Substitutor: <map substitutor: {T = kotlin/Number}>
Substituted pairs:
kotlin/Number <: kotlin/Number (Original: kotlin/Number <: T)
