Change String.subSequence parameter names to match those of CharSequence.subSequence.

compiler/testData/builtin-classes-kotlin.txt

@@ -654,7 +654,7 @@ public final class String : kotlin.Comparable<kotlin.String>, kotlin.CharSequenc
     public open override /*1*/ fun compareTo(/*0*/ other: kotlin.String): kotlin.Int
     public open override /*1*/ fun get(/*0*/ index: kotlin.Int): kotlin.Char
     public final operator fun plus(/*0*/ other: kotlin.Any?): kotlin.String
-    public open override /*1*/ fun subSequence(/*0*/ start: kotlin.Int, /*1*/ end: kotlin.Int): kotlin.CharSequence
+    public open override /*1*/ fun subSequence(/*0*/ startIndex: kotlin.Int, /*1*/ endIndex: kotlin.Int): kotlin.CharSequence
 
     public companion object Companion {
         /*primary*/ private constructor Companion()

core/builtins/native/kotlin/String.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2015 JetBrains s.r.o.
+ * Copyright 2010-2016 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -32,7 +32,7 @@ public class String : Comparable<String>, CharSequence {
 
     public override fun get(index: Int): Char
 
-    public override fun subSequence(start: Int, end: Int): CharSequence
+    public override fun subSequence(startIndex: Int, endIndex: Int): CharSequence
 
     public override fun compareTo(other: String): Int
 }

libraries/stdlib/src/kotlin/text/Strings.kt

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2010-2016 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 @file:kotlin.jvm.JvmMultifileClass
 @file:kotlin.jvm.JvmName("StringsKt")
 
@@ -286,6 +302,16 @@ public fun String.substring(range: IntRange): String = substring(range.start, ra
  */
 public fun CharSequence.subSequence(range: IntRange): CharSequence = subSequence(range.start, range.endInclusive + 1)
 
+/**
+ * Returns a subsequence of this char sequence.
+ *
+ * This extension is chosen only for invocation with old-named parameters.
+ * Replace parameter names with the same as those of [CharSequence.subSequence].
+ */
+@kotlin.internal.InlineOnly
+@Deprecated("Use parameters named startIndex and endIndex.", ReplaceWith("subSequence(startIndex = start, endIndex = end)"))
+public inline fun String.subSequence(start: Int, end: Int): CharSequence = subSequence(start, end)
+
 /**
  * Returns a substring of chars from a range of this char sequence starting at the [startIndex] and ending right before the [endIndex].
  *