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

#KT-16078 Fixed

idea/testData/formatter/DocComments.after.kt

@@ -1,8 +1,7 @@
 /** Doc comment for A */
 class A {
     /** Doc comment for function */
-    fun foo() {
-    }
+    fun foo() {}
 
     /**
      * Doc comment for property

idea/testData/formatter/EmptyLineBetweenFunAndProperty.after.kt

@@ -1,6 +1,5 @@
 // No lines
-fun f1() {
-}
+fun f1() {}
 
 val p1 = 1
 fun f2() {}

idea/testData/formatter/EmptyLineBetweenFunctions.after.kt

@@ -28,8 +28,7 @@ fun f6() = 1
 fun f7() = 8
 
 // Two lines between
-fun l1() {
-}
+fun l1() {}
 
 
 fun l2() {}

idea/testData/formatter/NewLineForRBrace.after.kt

@@ -34,3 +34,15 @@ enum class E1 {
 fun e = fun(a: Int,
             b: String) {
 }
+
+/**
+ *
+ */
+fun commented1() {}
+
+/*
+ */
+fun commented2() {}
+
+// Comment
+fun commented3() {}

idea/testData/formatter/NewLineForRBrace.kt

@@ -28,3 +28,15 @@ enum class E1 {
 
 fun e = fun(a: Int,
             b: String) {}
+
+/**
+ *
+ */
+fun commented1() {}
+
+/*
+ */
+fun commented2() {}
+
+// Comment
+fun commented3() {}

idea/testData/formatter/PropertyAccessors.after.kt

@@ -21,3 +21,20 @@ class EmptyProperties {
         }
         set(value) {}
 }
+
+class EmptyProperties {
+    /**
+     *
+     */
+    var newline: String
+        /**
+         *
+         */
+        get() {
+            return ""
+        }
+        /**
+         *
+         */
+        set(value) {}
+}

idea/testData/formatter/PropertyAccessors.kt

@@ -25,3 +25,19 @@ class EmptyProperties {
         get() { return "" }
         set(value) {}
 }
+
+class EmptyProperties {
+    /**
+     *
+     */
+    var newline: String
+        /**
+         *
+         */
+        get() { return "" }
+
+        /**
+         *
+         */
+        set(value) {}
+}

idea/testData/formatter/SpacesInDeclarations.after.kt

@@ -14,8 +14,7 @@ fun fooFun2() {
 }
 
 //-----------------------
-public fun Int.extFun1() {
-}
+public fun Int.extFun1() {}
 
 public
 fun Int.extFun2() {