From 0c27e07e8c9ab20c4fd6056ddcc2d6b5468ae646 Mon Sep 17 00:00:00 2001
From: Ilya Gorbunov <ilya.gorbunov@jetbrains.com>
Date: Thu, 12 Jan 2017 00:27:50 +0300
Subject: [PATCH] Improve headers of Appendable and StringBuilder

---
 libraries/stdlib/common/src/kotlin/TextH.kt | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/libraries/stdlib/common/src/kotlin/TextH.kt b/libraries/stdlib/common/src/kotlin/TextH.kt
index f43624318c1..c827b537ec6 100644
--- a/libraries/stdlib/common/src/kotlin/TextH.kt
+++ b/libraries/stdlib/common/src/kotlin/TextH.kt
@@ -18,6 +18,8 @@ package kotlin.text
 
 header interface Appendable {
     fun append(c: Char): Appendable
+    fun append(csq: CharSequence?): Appendable
+    fun append(csq: CharSequence?, start: Int, end: Int): Appendable
 }
 
 header class StringBuilder : Appendable, CharSequence {
@@ -30,7 +32,10 @@ header class StringBuilder : Appendable, CharSequence {
     override fun subSequence(startIndex: Int, endIndex: Int): CharSequence
 
     fun reverse(): StringBuilder
-    override fun append(c: Char): Appendable
+    override fun append(c: Char): StringBuilder
+    override fun append(csq: CharSequence?): StringBuilder
+    override fun append(csq: CharSequence?, start: Int, end: Int): StringBuilder
+    fun append(obj: Any?): StringBuilder
 }
 
 header class Regex {