Add kotlinx.coroutines to IDEA dependencies

Add some cool coroutine-based stuff
Like CoroutineDispatcher for EDT

idea/idea-core/idea-core.iml

@@ -16,5 +16,6 @@
     <orderEntry type="module" module-name="util" />
     <orderEntry type="module" module-name="j2k" />
     <orderEntry type="library" scope="PROVIDED" name="gradle-and-groovy-plugin" level="project" />
+    <orderEntry type="library" exported="" name="kotlinx-coroutines-core" level="project" />
   </component>
 </module>

idea/idea-core/src/org/jetbrains/kotlin/idea/core/util/CoroutineUtils.kt

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2010-2017 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.kotlin.idea.core.util
+
+import com.intellij.openapi.application.ApplicationManager
+import kotlinx.coroutines.experimental.CoroutineDispatcher
+import kotlin.coroutines.experimental.CoroutineContext
+
+
+public object EDT : CoroutineDispatcher() {
+    override fun isDispatchNeeded(context: CoroutineContext): Boolean {
+        return !ApplicationManager.getApplication().isDispatchThread
+    }
+
+    override fun dispatch(context: CoroutineContext, block: Runnable) {
+        ApplicationManager.getApplication().invokeLater(block)
+    }
+}