rra/ilgonmic/mocha-fail

[Gradle, JS] Use empty adapter to just dry run

[Gradle, JS] Not dry run, but full run

[Gradle, JS] Fix test to be failed without dry run

[Gradle, JS] Not use client twice

[Gradle, JS] Add test on mocha failing

[Gradle, JS] Fail mocha in case of infrastructure problems

Merge-request: KT-MR-5802
Merged-by: Ilya Goncharov <Ilya.Goncharov@jetbrains.com>

^KT-51623 fixed

libraries/tools/kotlin-test-js-runner/build.gradle.kts

@@ -40,6 +40,7 @@ tasks {
         inputs.dir("src")
         inputs.files(
             "nodejs.ts",
+            "nodejs-empty.ts",
             "nodejs-idle.ts",
             "karma.ts",
             "karma-kotlin-reporter.js",