Add platformStatic annotation to main method from java

#KT-8219 Fixed

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

@@ -3,9 +3,10 @@
 // ERROR: Assignments are not expressions, and only expressions are allowed in this context
 // ERROR: Unresolved reference: close
 import java.io.*
+import kotlin.platform.platformStatic
 
 object FileRead {
-    public fun main(args: Array<String>) {
+    platformStatic public fun main(args: Array<String>) {
         try {
             val fstream = FileInputStream()
             val `in` = DataInputStream(fstream)
@@ -20,6 +21,4 @@ object FileRead {
         }
 
     }
-}
-
-fun main(args: Array<String>) = FileRead.main(args)
+}