cache variable nullability (IDEA-97762)
check for being getter before parsing method body (IDEA-97762)
IDEA-99725 "Constant conditions & exceptions" inspection produces invalid code
dfa minor
single dfa variable nullability
a consistent dfa treatment for plain fields assuming single-threaded context (IDEA-92380)
let method calls on other instances not affect our fields (IDEA-92380)
disprefer rarely used Object methods