Fix compiler warnings in compiler code

generators/evaluate/GenerateOperationsMap.kt

@@ -62,8 +62,8 @@ fun generate(): String {
         }
     }
 
-    p.println("internal val emptyBinaryFun: Function2<BigInteger, BigInteger, BigInteger> = { a, b -> BigInteger(\"0\") }")
-    p.println("internal val emptyUnaryFun: Function1<Long, Long> = { a -> 1.toLong() }")
+    p.println("internal val emptyBinaryFun: Function2<BigInteger, BigInteger, BigInteger> = { _, _ -> BigInteger(\"0\") }")
+    p.println("internal val emptyUnaryFun: Function1<Long, Long> = { _ -> 1.toLong() }")
     p.println()
     p.println("internal val unaryOperations: HashMap<UnaryOperationKey<*>, Pair<Function1<Any?, Any>, Function1<Long, Long>>>")
     p.println("            = hashMapOf<UnaryOperationKey<*>, Pair<Function1<Any?, Any>, Function1<Long, Long>>>(")

generators/interpreter/GenerateInterpreterMap.kt

@@ -49,7 +49,7 @@ fun generateMap(): String {
 
     val binaryIrOperationsMap = getBinaryIrOperationMap(irBuiltIns)
 
-    //save to file
+    p.println("@Suppress(\"DEPRECATION\")")
     p.println("val unaryFunctions = mapOf<CompileTimeFunction, Function1<Any?, Any?>>(")
     p.println(generateUnaryBody(unaryOperationsMap, irBuiltIns))
     p.println(")")

generators/tests/org/jetbrains/kotlin/generators/protobuf/GenerateProtoBufCompare.kt

@@ -101,6 +101,8 @@ class GenerateProtoBufCompare {
         val sb = StringBuilder()
         val p = Printer(sb)
         p.println(File("license/COPYRIGHT.txt").readText())
+        p.println("@file:Suppress(\"UNUSED_PARAMETER\")")
+        p.println("")
         p.println("package org.jetbrains.kotlin.incremental")
         p.println()