Specially since the first IDEs with such features were for Smalltalk and Lisp.
Mesa (XDE) and then Mesa/Cedar, have several references Xerox papers, on how those enviroments served as inspiration for their IDE like features, like REPL, typo corrections, debugging, code reloading,...
Exactly. Too many folks take "static typing" as the only form of static analysis that can be done. Sometimes the only analysis that can be done on a codebase.