Fixes the test failures that arose from making `ExtractedArgumentNode`
local.
For the consistency checks, we now explicitly exclude the
`ExtractedArgumentNode`s (now much more plentiful due to the
overapproximation) that don't have a corresponding `getCallArg` tuple.
For various queries/tests using `instanceof ArgumentNode`, we instead us
`isArgumentNode`, which explicitly filters out the ones for which
`isArgumentOf` doesn't hold (which, again, is the case for most of the
nodes in the overapproximation).
These are the labmda self references. This is similar to
how `BlockParameterArgumentNode` is excluded for Ruby.
It is important that we restrict `call` in this logic.
Otherwise, we get a cartesian product and the consistency
check runs for a very long time...
