[Gradle, JS] Add to test success of compilation task

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/Kotlin2JsGradlePluginIT.kt

@@ -218,6 +218,7 @@ class Kotlin2JsIrGradlePluginIT : AbstractKotlin2JsGradlePluginIT(true) {
                 assertTrue("lib and libOther should be once in cache") {
                     lib && libOther
                 }
+                assertTasksExecuted(":app:compileDevelopmentExecutableKotlinJs")
             }
         }
     }