KT-51908 Common MatchGroupCollection.get(name) extension function

libraries/stdlib/jdk8/src/kotlin/text/RegexExtensions.kt

@@ -1,36 +0,0 @@
-/*
- * Copyright 2010-2017 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:Suppress("INVISIBLE_MEMBER", "INVISIBLE_REFERENCE")
-@file:JvmName("RegexExtensionsJDK8Kt")
-@file:kotlin.jvm.JvmPackageName("kotlin.text.jdk8")
-package kotlin.text
-
-/**
- * Returns a named group with the specified [name].
- *
- * @return An instance of [MatchGroup] if the group with the specified [name] was matched or `null` otherwise.
- * @throws IllegalArgumentException if there is no group with the specified [name] defined in the regex pattern.
- * @throws UnsupportedOperationException if this match group collection doesn't support getting match groups by name,
- * for example, when it's not supported by the current platform.
- */
-@SinceKotlin("1.2")
-public operator fun MatchGroupCollection.get(name: String): MatchGroup? {
-    val namedGroups = this as? MatchNamedGroupCollection
-            ?: throw UnsupportedOperationException("Retrieving groups by name is not supported on this platform.")
-
-    return namedGroups[name]
-}