Implement Kotlin usage classification

idea/testData/findUsages/findClassUsages/kotlinUsages1/Client.kt

@@ -0,0 +1,34 @@
+package client
+
+import server.Server
+
+class Client: Server {
+    var nextServer: Server? = null
+    val name = Server.NAME
+
+    fun foo(s: Server) {
+        val server: Server = s
+        println("Server: $server")
+    }
+
+    fun getNextServer(): Server? {
+        return nextServer
+    }
+
+    override fun work() {
+        super<Server>.work()
+        println("Client")
+    }
+}
+
+fun Client.bar(s: Server) {
+    foo(s)
+}
+
+fun Client.hasNextServer(): Boolean {
+    return getNextServer() != null
+}
+
+fun Any.asServer(): Server? {
+    return if (this is Server) this as Server else null
+}

idea/testData/findUsages/findClassUsages/kotlinUsages1/Server.kt

@@ -0,0 +1,11 @@
+package server
+
+open class <caret>Server {
+    class object {
+        val NAME = "Server"
+    }
+
+    open fun work() {
+        println("Server")
+    }
+}

idea/testData/findUsages/findClassUsages/kotlinUsages2/Client.kt

@@ -0,0 +1,8 @@
+package client
+
+import server.X
+
+X("")
+class Client {
+
+}

idea/testData/findUsages/findClassUsages/kotlinUsages2/Server.kt

@@ -0,0 +1,3 @@
+package server
+
+annotation class <caret>X(val x: String)

idea/testData/findUsages/findClassUsages/kotlinUsages3/Client.kt

@@ -0,0 +1,9 @@
+package client
+
+import server.Data
+
+class Client<T: Data, X> where X: Data {
+
+}
+
+val c = Client<Data>()

idea/testData/findUsages/findClassUsages/kotlinUsages3/Server.kt

@@ -0,0 +1,3 @@
+package server
+
+data class <caret>Data

idea/testData/findUsages/findMethodUsages/kotlinUsages/Client.kt

@@ -0,0 +1,12 @@
+package client
+
+import server.processRequest
+
+class Client {
+    val methodRef = ::processRequest()
+
+    fun doProcessRequest() {
+        println("Process...")
+        processRequest()
+    }
+}

idea/testData/findUsages/findMethodUsages/kotlinUsages/Server.kt

@@ -0,0 +1,4 @@
+package server;
+
+fun <caret>processRequest() = "foo"
+

idea/testData/findUsages/findObjectUsages/javaUsages/Client.java

@@ -0,0 +1,9 @@
+package client;
+
+import server.O
+
+class Client {
+    fun fooBar() {
+        println("foo = " + O.instance$.getFoo())
+    }
+}

idea/testData/findUsages/findObjectUsages/javaUsages/Server.kt

@@ -0,0 +1,6 @@
+package server;
+
+object <caret>O {
+    var foo: String = "foo"
+}
+

idea/testData/findUsages/findObjectUsages/kotlinUsages/Client.kt

@@ -0,0 +1,11 @@
+package client
+
+import server.O
+
+class Client {
+    fun fooBar() {
+        println("foo = ${O.foo}")
+        val obj = O
+        println("length: ${obj.foo.length()}")
+    }
+}

idea/testData/findUsages/findObjectUsages/kotlinUsages/Server.kt

@@ -0,0 +1,6 @@
+package server;
+
+object <caret>O {
+    var foo: String = "foo"
+}
+

idea/testData/findUsages/findPropertyUsages/javaUsages/Client.java

@@ -0,0 +1,9 @@
+package client;
+
+import server.O
+
+class Client {
+    fun fooBar() {
+        println("foo = " + O.instance$.getFoo())
+    }
+}

idea/testData/findUsages/findPropertyUsages/javaUsages/Server.kt

@@ -0,0 +1,6 @@
+package server;
+
+object O {
+    var <caret>foo: String = "foo"
+}
+

idea/testData/findUsages/findPropertyUsages/kotlinUsages/Client.kt

@@ -0,0 +1,10 @@
+package client
+
+import server.foo
+
+class Client {
+    fun fooBar() {
+        println("foo = ${server.foo}")
+        println("length: ${server.foo.length()}")
+    }
+}

idea/testData/findUsages/findPropertyUsages/kotlinUsages/Server.kt

@@ -0,0 +1,4 @@
+package server;
+
+var <caret>foo: String = "foo"
+