`stickyPostconditions` are such conditions that are checked
every time after applying when a new lowering finishes its execution.
Right now we are using them only in JVM, and this is a blocker
for adopting Native approach for lowering execution.
In Native we are using
`SimpleNamedCompilerPhase<in Context : LoggingContext, Input, Output>`
as the common super type for all lowerings. Here we have `Input` and
`Output` that can potentially be different and `stickyPostconditions`
don't have much sense in that case.
Ivan Kylchik
f5bb477459