Add missing dependencies for kotlin old tests

Change-Id: I9acd7454b8985e79931dcf95c85516512793f97a
diff --git a/d8_r8/commonBuildSrc/src/main/kotlin/DependenciesPlugin.kt b/d8_r8/commonBuildSrc/src/main/kotlin/DependenciesPlugin.kt
index 093efb8..6a0c07f 100644
--- a/d8_r8/commonBuildSrc/src/main/kotlin/DependenciesPlugin.kt
+++ b/d8_r8/commonBuildSrc/src/main/kotlin/DependenciesPlugin.kt
@@ -489,6 +489,10 @@
     "kotlinR8TestResources",
     Paths.get("third_party", "kotlinR8TestResources").toFile(),
     Paths.get("third_party", "kotlinR8TestResources.tar.gz.sha1").toFile())
+  val kotlinxCoroutines = ThirdPartyDependency(
+    "kotlinx-coroutines-1.3.6",
+    Paths.get("third_party", "kotlinx-coroutines-1.3.6").toFile(),
+    Paths.get("third_party", "kotlinx-coroutines-1.3.6.tar.gz.sha1").toFile())
   val multidex = ThirdPartyDependency(
     "multidex",
     Paths.get("third_party", "multidex").toFile(),