Some non validation errors such as timeouts raise an exception in the reporter

[RickMoynihan]

This is due to them failing to pass the appropriate :test-source key which we use to render the error message.

No implementation of method: :get-path of protocol: #'rdf-validator.util/HasPath found for class: nil
java.lang.IllegalArgumentException: No implementation of method: :get-path of protocol: #'rdf-validator.util/HasPath found for class: nil
	at clojure.core$_cache_protocol_fn.invokeStatic(core_deftype.clj:583)
	at clojure.core$_cache_protocol_fn.invoke(core_deftype.clj:575)
	at rdf_validator.util$eval3428$fn__3429$G__3419__3434.invoke(util.clj:11)
	at rdf_validator.reporting.ConsoleTestReporter.report_test_result_BANG_(reporting.clj:15)
	at rdf_validator.core$report_test_cases$fn__6345.invoke(core.clj:96)
	at clojure.lang.ArrayChunk.reduce(ArrayChunk.java:58)
	at clojure.core.protocols$fn__8178.invokeStatic(protocols.clj:136)
	at clojure.core.protocols$fn__8178.invoke(protocols.clj:124)
	at clojure.core.protocols$fn__8138$G__8133__8147.invoke(protocols.clj:19)
	at clojure.core.protocols$seq_reduce.invokeStatic(protocols.clj:31)
	at clojure.core.protocols$fn__8170.invokeStatic(protocols.clj:75)
	at clojure.core.protocols$fn__8170.invoke(protocols.clj:75)
	at clojure.core.protocols$fn__8112$G__8107__8125.invoke(protocols.clj:13)
	at clojure.core$reduce.invokeStatic(core.clj:6833)
	at clojure.core$reduce.invoke(core.clj:6815)
	at rdf_validator.core$report_test_cases.invokeStatic(core.clj:95)
	at rdf_validator.core$report_test_cases.invoke(core.clj:93)
	at rdf_validator.core$inner_main.invokeStatic(core.clj:135)
	at rdf_validator.core$inner_main.invoke(core.clj:124)
	at rdf_validator.core$_main.invokeStatic(core.clj:143)
	at rdf_validator.core$_main.doInvoke(core.clj:139)
	at clojure.lang.RestFn.applyTo(RestFn.java:137)
	at clojure.lang.Var.applyTo(Var.java:705)
	at clojure.core$apply.invokeStatic(core.clj:667)
	at clojure.main$main_opt.invokeStatic(main.clj:514)
	at clojure.main$main_opt.invoke(main.clj:510)
	at clojure.main$main.invokeStatic(main.clj:664)
	at clojure.main$main.doInvoke(main.clj:616)
	at clojure.lang.RestFn.applyTo(RestFn.java:137)
	at clojure.lang.Var.applyTo(Var.java:705)
	at clojure.main.main(main.java:40)