Don't use exitProcess to indicate a failure in Native library resolver

If Native compiler performs exitProcess, it crashes Gradle daemon that
runs the compiler.

kotlin-native/backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2Native.kt

@@ -61,7 +61,6 @@ class K2Native : CLICompiler<K2NativeCompilerArguments>() {
         val project = environment.project
         val messageCollector = configuration.get(CLIConfigurationKeys.MESSAGE_COLLECTOR_KEY) ?: MessageCollector.NONE
         configuration.put(CLIConfigurationKeys.PHASE_CONFIG, createPhaseConfig(toplevelPhase, arguments, messageCollector))
-        val konanConfig = KonanConfig(project, configuration)
 
         val enoughArguments = arguments.freeArgs.isNotEmpty() || arguments.isUsefulWithoutFreeArgs
         if (!enoughArguments) {
@@ -75,6 +74,7 @@ class K2Native : CLICompiler<K2NativeCompilerArguments>() {
         }
 
         try {
+            val konanConfig = KonanConfig(project, configuration)
             runTopLevelPhases(konanConfig, environment)
         } catch (e: KonanCompilationException) {
             return ExitCode.COMPILATION_ERROR

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

@@ -7,7 +7,6 @@ package org.jetbrains.kotlin.backend.konan
 
 import org.jetbrains.kotlin.cli.common.CLIConfigurationKeys
 import org.jetbrains.kotlin.cli.common.messages.CompilerMessageSeverity
-import org.jetbrains.kotlin.cli.common.messages.GroupingMessageCollector
 import org.jetbrains.kotlin.config.CompilerConfiguration
 import org.jetbrains.kotlin.konan.CompilerVersion
 import org.jetbrains.kotlin.konan.file.File
@@ -19,7 +18,6 @@ import org.jetbrains.kotlin.library.UnresolvedLibrary
 import org.jetbrains.kotlin.library.resolver.impl.libraryResolver
 import org.jetbrains.kotlin.library.toUnresolvedLibraries
 import org.jetbrains.kotlin.util.Logger
-import kotlin.system.exitProcess
 
 class KonanLibrariesResolveSupport(
         configuration: CompilerConfiguration,
@@ -48,8 +46,7 @@ class KonanLibrariesResolveSupport(
                 override fun log(message: String) = collector.report(CompilerMessageSeverity.LOGGING, message)
                 override fun fatal(message: String): Nothing {
                     collector.report(CompilerMessageSeverity.ERROR, message)
-                    (collector as? GroupingMessageCollector)?.flush()
-                    exitProcess(1)
+                    throw KonanCompilationException()
                 }
             }