Java to Kotlin converter: supported try-with-resource construct, fixed anonymous class generation + fixed a bug with method return type

#KT-4488 Fixed

j2k/tests/testData/ast/tryWithResource/Simple.kt

@@ -0,0 +1,7 @@
+import java.io.*
+
+public class C() {
+    fun foo() {
+        FileInputStream("foo").use { stream -> System.out.println(stream.read()) }
+    }
+}