The changes to our GraphNodeReferencable and GraphNodeReferencer
interfaces were not also reflected in our testing structs here, and so
these tests were no longer working.
This updates these implementations to the new required signatures,
adapting the simplified model used in the structs to generate local
variable references, since the reference model no longer uses the
arbitrary strings that this test originally depended on.
We also remove some of the tests here since the functionality they were
testing no longer applies: inter-module dependencies are now handled by
the graph nodes producing extra ReferencableAddrs, and the "backup" form
is no longer used because our new address model is able to distinguish
resources from resource instances without the need for the magical
backup reference forms we previously used.
After the refactoring to integrate HCL2 many of the tests were no longer
using correct types, attribute names, etc.
This is a bulk update of all of the tests to make them compile again, with
minimal changes otherwise. Although the tests now compile, many of them
do not yet pass. The tests will be gradually repaired in subsequent
commits, as we continue to complete the refactoring and retrofit work.
terraform: more specific resource references
terraform: outputs need to know about the new reference format
terraform: resources w/o a config still have a referencable name
