J2K: all annotations should be with "@"

j2k/testData/fileOrElement/issues/kt-638.kt

@@ -21,7 +21,7 @@ class Identifier<T> {
 }
 
 object User {
-    JvmStatic fun main(args: Array<String>) {
+    @JvmStatic fun main(args: Array<String>) {
         val i1 = Identifier("name", false, true)
         val i2 = Identifier("name", false)
         val i3 = Identifier("name")

j2k/testData/fileOrElement/issues/kt-807.kt

@@ -5,7 +5,7 @@
 import java.io.*
 
 internal object FileRead {
-    JvmStatic fun main(args: Array<String>) {
+    @JvmStatic fun main(args: Array<String>) {
         try {
             val fstream = FileInputStream()
             val `in` = DataInputStream(fstream)

j2k/testData/fileOrElement/issues/kt-871.kt

@@ -1,7 +1,7 @@
 package demo
 
 internal object Program {
-    JvmStatic fun main(args: Array<String>) {
+    @JvmStatic fun main(args: Array<String>) {
         println("Halo!")
     }
 }