[CLI] K2JVMCompilerArguments: Model classpath as Array<String>

to allow interning individual file-path arguments on the IDE

KTIJ-24976

compiler/cli/cli-common/gen/org/jetbrains/kotlin/cli/common/arguments/K2JVMCompilerArgumentsCopyGenerated.kt

@@ -17,7 +17,7 @@ fun copyK2JVMCompilerArguments(from: K2JVMCompilerArguments, to: K2JVMCompilerAr
     to.assertionsMode = from.assertionsMode
     to.backendThreads = from.backendThreads
     to.buildFile = from.buildFile
-    to.classpath = from.classpath
+    to.classpath = from.classpath?.copyOf()
     to.compileJava = from.compileJava
     to.declarationsOutputPath = from.declarationsOutputPath
     to.defaultScriptExtension = from.defaultScriptExtension

compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JVMCompilerArguments.kt

@@ -26,9 +26,10 @@ class K2JVMCompilerArguments : CommonCompilerArguments() {
         value = "-classpath",
         shortName = "-cp",
         valueDescription = "<path>",
-        description = "List of directories and JAR/ZIP archives to search for user class files"
+        description = "List of directories and JAR/ZIP archives to search for user class files",
+        delimiter = Argument.Delimiters.pathSeparator
     )
-    var classpath: String? = null
+    var classpath: Array<String>? = null
         set(value) {
             checkFrozen()
             field = if (value.isNullOrEmpty()) null else value

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/cliCompilerUtils.kt

@@ -174,7 +174,7 @@ fun writeOutputsIfNeeded(
 
 fun ModuleBuilder.configureFromArgs(args: K2JVMCompilerArguments) {
     args.friendPaths?.forEach { addFriendDir(it) }
-    args.classpath?.split(File.pathSeparator)?.forEach { addClasspathEntry(it) }
+    args.classpath?.forEach { addClasspathEntry(it) }
     args.javaSourceRoots?.forEach {
         addJavaSourceRoot(JavaRootPath(it, args.javaPackagePrefix))
     }

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/jvmArguments.kt

@@ -179,7 +179,7 @@ fun CompilerConfiguration.configureJavaModulesContentRoots(arguments: K2JVMCompi
 }
 
 fun CompilerConfiguration.configureContentRootsFromClassPath(arguments: K2JVMCompilerArguments) {
-    for (path in arguments.classpath?.split(File.pathSeparatorChar).orEmpty()) {
+    for (path in arguments.classpath.orEmpty()) {
         add(CLIConfigurationKeys.CONTENT_ROOTS, JvmClasspathRoot(File(path)))
     }
 }