[compiletest]: use common infrastructure to detect the host OS

backend.native/compiletest/build.gradle

@@ -4,6 +4,7 @@ apply plugin: 'kotlin'
 dependencies {
     compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
     compile project(path: ':backend.native', configuration: 'cli_bc')
+    compile project(':shared')
     testCompile 'junit:junit:4.12'
 }
 

backend.native/compiletest/src/main/kotlin/org/jetbrains/kotlin/compiletest/DistProperties.kt

@@ -1,14 +1,14 @@
 package org.jetbrains.kotlin.compiletest
 
+import org.jetbrains.kotlin.konan.target.Family
+import org.jetbrains.kotlin.konan.target.TargetManager
 import java.nio.file.Path
 import java.nio.file.Paths
 
 
 object DistProperties {
-    private val isWindows: Boolean = requireProp("os.name").startsWith("Windows")
-
     private val dist: Path = Paths.get(requireProp("konan.home"))
-    private val konancDriver = if (isWindows) "konanc.bat" else "konanc"
+    private val konancDriver = if (TargetManager.host.family == Family.WINDOWS) "konanc.bat" else "konanc"
     val konanc: Path = dist.resolve("bin/$konancDriver")
     val lldb: Path = Paths.get("lldb")