When replacing a jump instruction with another one, copy the offset, and link the exit point to the new jump instruction.

Apply sealed modifier to ASMetadata.
Apply sealed modifier to ASItemInfo
Remove FlashItem base class from ASItemInfo
Remove WriteTo override method
Remove (ABCFile, FlashReader) constructor
Add (ABCFile, int, int) constructor for adding a key/value pair

…class names of AS3 objects

The upgrade process works by comparing the namespace of a trait, against the qualified name and namespace of its' container(class/instance). If the namespace of the trait does not match, the upgrader assumes that the trait carries the real package name, as well as the qualified name of the container it resides in.

…t is tagged