Performance with recursion

When the schema reuse recursively 2-3 level, there is a big performance issue.

The vscode json service just freeze for 20+ seconds to parse the data. Normally it is < 2 seconds.

Here is a repro:

https://github.com/justland/just-func/blob/json-perf/json-schema-specs/draft-07-core/let.jsonc

The data causing problem is this one:

      [
        "str",
        "Hello ",
        [
          "if",
          [
            "===",
            "male",
            [
              "ret",
              "gender"
            ]
          ],
          "Mr. ",
          "Mrs "
        ],
        [
          "ret",
          "name"
        ]
      ]

At the deepest (===) it is 4 level dep using the same schema.

You can find the json schema here:
https://github.com/justland/just-func/blob/json-perf/json-schema-specs/draft-07-core-specs.jsonc

which references this schema:
https://github.com/justland/just-func/blob/json-perf/json-schema/just-func.jsonc