terraform_deprecated_index fails to parse nested interpolations in JSON

[glindstedt]

Probably related to #42 #43

A minimal example based on our usage:

{
  "resource": {
    "google_storage_bucket_object": {
      "foo": {
        "bucket": "foo",
        "name": "foo.zip#${filemd5(\"${path.module}/foo.zip\")}",
        "source": "${path.module}/foo.zip"
      }
    }
  }
}

This fails with 0.2.1 with the following error:

Failed to check ruleset; Failed to check `terraform_deprecated_index` rule: foo.tf.json:10,36-37: Invalid character; This character is not used within the language., and 2 other diagnostic(s)

But if I force version 0.1.1 this error does not appear.

[bendrucker]

Can you make this truly minimal by limiting to a single interpolated expression? If any expression will break this way, just source is a minimal reproduction. The static attribute is irrelevant, I'm mainly interested in whether source reproduces or whether there's something about the name expression.

[glindstedt]

Got it down to this:

{
  "resource": {
    "google_storage_bucket_object": {
      "foo": {
        "name": "${\"${x}\"}"
      }
    }
  }
}

[wata727]

This issue doesn't seem to reproduce in v0.2.2. Also, this rule was rewritten in #90 and may no longer be fully reproducible.
For the reasons above, closing this issue. If the issue still reproduces, please open a new issue.