Keep empty bodies for declarations with comments (KT-16078)

#KT-16078 Fixed

j2k/testData/fileOrElement/comments/commentsForConstructors.kt

@@ -7,8 +7,7 @@ internal class A// this is a primary constructor
     } // end of primary constructor body
 
     // this is a secondary constructor 2
-    constructor(s: String) : this(s.length) {
-    } // end of secondary constructor 2 body
+    constructor(s: String) : this(s.length) {} // end of secondary constructor 2 body
 }// this is a secondary constructor 1
 // end of secondary constructor 1 body
 

j2k/testData/fileOrElement/issues/comments.kt

@@ -25,16 +25,14 @@ internal class C {
     }
 
     //simple one line comment for function
-    fun f1() {
-    }
+    fun f1() {}
 
     //simple one line comment for field
     var j: Int = 0
 
     //double c style
     //comment before function
-    fun f2() {
-    }
+    fun f2() {}
 
     //double c style
     //comment before field
@@ -48,8 +46,7 @@ internal class C {
      * different
      */
     //comments
-    fun f3() {
-    }
+    fun f3() {}
 
     //combination
     /** of