Spec-tools compatibility: support IFn on records?

[arichiardi]

Is your feature request related to a problem? Please describe.
I would like to make spec-tools compatible with babashka.

At the moment the namespaces are not loading because of this issue:

----- Error --------------------------------------------------------------------
Type:     clojure.lang.ExceptionInfo
Message:  defrecord/deftypecurrently only support protocol implementations, found: IFn
Data:     {:type :sci/error, :line nil, :column nil, :file "spec_tools/core.cljc"}
Location: spec_tools/core.cljc:396:1
Phase:    macroexpand

----- Context ------------------------------------------------------------------
392:     (if (sequential? type)
393:       (update spec :type (comp first second))
394:       spec)))
395: 
396: (defrecord Spec [spec form type]
     ^--- defrecord/deftypecurrently only support protocol implementations, found: IFn
397:   #?@(:clj [s/Specize
398:             (specize* [s] s)
399:             (specize* [s _] s)])
400: 
401:   Coercion

----- Stack trace --------------------------------------------------------------
clojure.core/defrecord                                                    - <built-in>
spec-tools.core/dorun                                                     - spec_tools/core.cljc:396:1
spec-tools.core                                                           - spec_tools/core.cljc:396:1
spec-tools.data-spec                                                      - spec_tools/data_spec.cljc:4:3
acuity.core3.models.clinical-configuration.contrast-agent-definition      - /home/cokap/git/cohesic/acuity/domain/src/acuity/core3/models/clinical_configuration/contrast_agent_definition.clj:2:3
... (run with --debug to see elided elements)
cognitect.test-runner/test                                                - /home/cokap/.gitlibs/libs/io.github.cognitect-labs/test-runner/dfb30dd6605cb6c0efc275e1df1736f6e90d4d73/src/cognitect/test_runner.clj:71:5
cognitect.test-runner/test                                                - /home/cokap/.gitlibs/libs/io.github.cognitect-labs/test-runner/dfb30dd6605cb6c0efc275e1df1736f6e90d4d73/src/cognitect/test_runner.clj:62:1
cognitect.test-runner                                                     - /home/cokap/.gitlibs/libs/io.github.cognitect-labs/test-runner/dfb30dd6605cb6c0efc275e1df1736f6e90d4d73/src/cognitect/test_runner.clj:127:38
clojure.core/apply                                                        - <built-in>
user-c31e592a-778b-4e5e-ac1b-4ce2f3522b90                                 - <expr>:26:1

Describe the solution you'd like
Basically something like the last commit of this fork should work. At least with what my code base contains.

Describe alternatives you've considered
I did fork, thanks for the suggestion.