Returns the name used to invoke the current context. If the current
context is a method,
name is the message name
used to invoke the method. If the current context is a routine invoked as an
external call,
name is the name used to call
the routine. If the current context is an internal routine call,
name
is the name of the label used to invoke the call. If the context is the main part of the program,
name will be the package name.