[Bug]: Integer[int32] unions after conversion to autorest, generated enum has type number instead of int[int32]

[Mohana-Krishna-N]

Describe the bug

When we try to generated the autorest for the union with type int[int32] It generates the type: number

Reproduction

Sample model:

union PollingIntervalInSeconds {
  @doc("30 PollingIntervalInSeconds")
  Thirty: 30,

  @doc("60 PollingIntervalInSeconds")
  sixty: 60,

  @doc("90 PollingIntervalInSeconds")
  Ninety: 90,

  @doc("120 PollingIntervalInSeconds")
  OneTwenty: 120,

  int32,
}

Actual output:

      "pollingIntervalInSeconds": {
        "type": "number",
        "description": "Polling interval in seconds.",
        "default": 30,
        "enum": [
          30,
          60,
          90,
          120
        ],
        "x-ms-enum": {
          "name": "PollingIntervalInSeconds",
          "modelAsString": true,
      },

Expected output: Should have "type": "int", "format": "int32" as shown below.

      "pollingIntervalInSeconds": {
        "type": "int",
        "format": "int32",
        "description": "Polling interval in seconds.",
        "default": 30,
        "enum": [
          30,
          60,
          90,
          120
        ],
        "x-ms-enum": {
          "name": "PollingIntervalInSeconds",
          "modelAsString": true,
      },

Checklist

• [X] Follow our Code of Conduct
• [X] Check that this issue is about the Azure libraries for typespec. For bug in the typespec language or core libraries file it in the TypeSpec repo
• [X] Check that there isn't already an issue that request the same bug to avoid creating a duplicate.
• [X] The provided reproduction is a minimal reproducible example of the bug.

[markcowl]

link to new issue on literal type resolution