Remove dependency of "descriptors" on Function/Condition/Processor

core/util.runtime/src/org/jetbrains/jet/utils/functions.kt

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2010-2014 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.
+ */
+
+package org.jetbrains.jet.utils
+
+private val IDENTITY: Function1<Any?, Any?> = { it }
+
+suppress("UNCHECKED_CAST")
+public fun <T> identity(): Function1<T, T> = IDENTITY as Function1<T, T>
+
+
+private val ALWAYS_TRUE: Function1<Any?, Boolean> = { true }
+
+public fun <T> alwaysTrue(): Function1<T, Boolean> = ALWAYS_TRUE