Native: rename Xcode.current to .findCurrent()

To reflect that it is a non-trivial operation with possible performance
overhead.

kotlin-native/build-tools/src/main/kotlin/org/jetbrains/kotlin/ExecutorService.kt

@@ -259,7 +259,7 @@ private fun simulator(project: Project): ExecutorService = object : ExecutorServ
     }
 
     private val simctl by lazy {
-        val sdk = Xcode.current.pathToPlatformSdk(configurables.platformName())
+        val sdk = Xcode.findCurrent().pathToPlatformSdk(configurables.platformName())
         val out = ByteArrayOutputStream()
         val result = project.exec {
             commandLine("/usr/bin/xcrun", "--find", "simctl", "--sdk", sdk)
@@ -638,7 +638,7 @@ fun KonanTestExecutable.configureXcodeBuild() {
                 }
 
         val sdk = when (project.testTarget) {
-            KonanTarget.IOS_ARM32, KonanTarget.IOS_ARM64 -> Xcode.current.iphoneosSdk
+            KonanTarget.IOS_ARM32, KonanTarget.IOS_ARM64 -> Xcode.findCurrent().iphoneosSdk
             else -> error("Unsupported target: ${project.testTarget}")
         }
 

kotlin-native/build-tools/src/main/kotlin/org/jetbrains/kotlin/FrameworkTest.kt

@@ -200,7 +200,7 @@ open class FrameworkTest : DefaultTask(), KonanTestExecutable {
         val configs = project.testTargetConfigurables as AppleConfigurables
         val swiftPlatform = configs.platformName().toLowerCase()
         val simulatorPath = when (configs.targetTriple.isSimulator) {
-            true -> Xcode.current.getLatestSimulatorRuntimeFor(configs.target.family, configs.osVersionMin)
+            true -> xcode.getLatestSimulatorRuntimeFor(configs.target.family, configs.osVersionMin)
                     ?.bundlePath
                     ?.let { "$it/Contents/Resources/RuntimeRoot/usr/lib/swift" }
             else -> null
@@ -255,7 +255,7 @@ open class FrameworkTest : DefaultTask(), KonanTestExecutable {
         if (configurables.targetTriple.isSimulator) {
             return // bitcode-build-tool doesn't support simulators.
         }
-        val sdk = Xcode.current.pathToPlatformSdk(configurables.platformName())
+        val sdk = xcode.pathToPlatformSdk(configurables.platformName())
 
         val python3 = listOf("/usr/bin/python3", "/usr/local/bin/python3")
                 .map { Paths.get(it) }.firstOrNull { Files.exists(it) }
@@ -264,4 +264,6 @@ open class FrameworkTest : DefaultTask(), KonanTestExecutable {
         runTest(executorService = localExecutorService(project), testExecutable = python3,
                 args = listOf("-B", bitcodeBuildTool, "--sdk", sdk, "-v", "-t", toolPath, frameworkBinary))
     }
+
+    private val xcode by lazy { Xcode.findCurrent() }
 }

kotlin-native/build-tools/src/main/kotlin/org/jetbrains/kotlin/PlatformInfo.kt

@@ -56,7 +56,7 @@ object PlatformInfo {
                 && properties.checkXcodeVersion
                 && requiredMajorVersion != null
         ) {
-            val currentXcodeVersion = Xcode.current.version
+            val currentXcodeVersion = Xcode.findCurrent().version
             val currentMajorVersion = currentXcodeVersion.splitToSequence('.').first()
             if (currentMajorVersion != requiredMajorVersion) {
                 throw IllegalStateException(

kotlin-native/shared/src/main/kotlin/org/jetbrains/kotlin/konan/target/Apple.kt

@@ -55,7 +55,7 @@ class AppleConfigurablesImpl(
         if (InternalServer.isAvailable) {
             XcodePartsProvider.InternalServer
         } else {
-            val xcode = Xcode.current
+            val xcode = Xcode.findCurrent()
 
             if (properties.getProperty("ignoreXcodeVersionCheck") != "true") {
                 properties.getProperty("minimalXcodeVersion")?.let { minimalXcodeVersion ->

kotlin-native/shared/src/main/kotlin/org/jetbrains/kotlin/konan/target/Xcode.kt

@@ -56,8 +56,11 @@ interface Xcode {
     companion object {
         // Don't cache the instance: the compiler might be executed in a Gradle daemon process,
         // so current Xcode might actually change between different invocations.
+        @Deprecated("", ReplaceWith("this.findCurrent()"), DeprecationLevel.WARNING)
         val current: Xcode
-            get() = CurrentXcode()
+            get() = findCurrent()
+
+        fun findCurrent(): Xcode = CurrentXcode()
     }
 }