Add coroutines-experimental-compat to idea plugin dist

It is required as a runtime dependency to instantiate async scripting
resolvers when importing Gradle 4.9 Kotlin DSL projects.

#KT-36083

idea/idea-gradle/build.gradle.kts

@@ -25,6 +25,7 @@ dependencies {
     compileOnly(intellijPluginDep("Groovy"))
     compileOnly(intellijPluginDep("junit"))
     compileOnly(intellijPluginDep("testng"))
+    runtimeOnly(project(":kotlin-coroutines-experimental-compat"))
 
     compileOnly(project(":kotlin-gradle-statistics"))