Get rid of explicit value case manipulations.

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanConfig.kt

@@ -69,7 +69,7 @@ class KonanConfig(val project: Project, val configuration: CompilerConfiguration
     internal val produce get() = configuration.get(KonanConfigKeys.PRODUCE)!!
     private val prefix = produce.prefix(target)
     private val suffix = produce.suffix(target)
-    val outputName = configuration.get(KonanConfigKeys.OUTPUT)?.removeSuffixIfPresent(suffix) ?: produce.name.toLowerCase()
+    val outputName = configuration.get(KonanConfigKeys.OUTPUT)?.removeSuffixIfPresent(suffix) ?: produce.userName
     val outputFile = outputName
         .prefixBaseNameIfNot(prefix)
         .suffixIfNot(suffix)

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanPhases.kt

@@ -17,12 +17,13 @@
 package org.jetbrains.kotlin.backend.konan
 
 import org.jetbrains.kotlin.backend.konan.util.*
+import org.jetbrains.kotlin.konan.util.UserNamed
 import org.jetbrains.kotlin.konan.target.CompilerOutputKind
 
 enum class KonanPhase(val description: String,
                       vararg prerequisite: KonanPhase,
-                      var enabled: Boolean = true, var verbose: Boolean = false) {
-
+                      var enabled: Boolean = true,
+                      var verbose: Boolean = false) : UserNamed {
     /* */ FRONTEND("Frontend builds AST"),
     /* */ PSI_TO_IR("Psi to IR conversion"),
     /* */ SERIALIZER("Serialize descriptor tree and inline IR bodies"),
@@ -73,7 +74,7 @@ enum class KonanPhase(val description: String,
 }
 
 object KonanPhases {
-    val phases = KonanPhase.values().associate { it.name.toLowerCase() to it }
+    val phases = KonanPhase.values().associate { it.userName to it }
 
     fun known(name: String): String {
         if (phases[name] == null) {

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/library/KonanLibrary.kt

@@ -32,7 +32,7 @@ interface KonanLibraryLayout {
     val targetsDir
         get() = File(libDir, "targets")
     val targetDir 
-        get() = File(targetsDir, target!!.name.toLowerCase())
+        get() = File(targetsDir, target!!.userName)
     val kotlinDir 
         get() = File(targetDir, "kotlin")
     val nativeDir