Validate tags, classes, method calls. Throws exceptions when invalid forms are encountered, replaces class symbols with class objects. Passes opts: * :validate/throw-on-arity-mismatch If true, validate will throw on potential arity mismatch * :validate/wrong-tag-handler If bound to a function, will invoke that function instead of throwing on invalid tag. The function takes the tag key (or :name/tag if the node is :def and the wrong tag is the one on the :name field meta) and the originating AST node and must return a map (or nil) that will be merged into the AST, possibly shadowing the wrong tag with Object or nil. * :validate/unresolvable-symbol-handler If bound to a function, will invoke that function instead of throwing on unresolvable symbol. The function takes three arguments: the namespace (possibly nil) and name part of the symbol, as symbols and the originating AST node which can be either a :maybe-class or a :maybe-host-form, those nodes are documented in the tools.analyzer quickref. The function must return a valid tools.analyzer.jvm AST node.