MultifileClassCodegen

- initial implementation
- new Kotlin file kinds + stub builder

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

@@ -69,6 +69,9 @@ public class K2JVMCompilerArguments extends CommonCompilerArguments {
     @Argument(value = "Xno-optimize", description = "Disable optimizations")
     public boolean noOptimize;
 
+    @Argument(value = "Xmultifile-package-facades", description = "Compile package facade classes as multifile classes")
+    public boolean packageFacadesAsMultifileClasses;
+
     @Argument(value = "Xreport-perf", description = "Report detailed performance statistics")
     public boolean reportPerf;
 

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/K2JVMCompiler.kt

@@ -272,6 +272,7 @@ public open class K2JVMCompiler : CLICompiler<K2JVMCompilerArguments>() {
             configuration.put(JVMConfigurationKeys.DISABLE_PARAM_ASSERTIONS, arguments.noParamAssertions)
             configuration.put(JVMConfigurationKeys.DISABLE_INLINE, arguments.noInline)
             configuration.put(JVMConfigurationKeys.DISABLE_OPTIMIZATION, arguments.noOptimize)
+            configuration.put(JVMConfigurationKeys.PACKAGE_FACADES_AS_MULTIFILE_CLASSES, arguments.packageFacadesAsMultifileClasses);
         }
 
         private fun getClasspath(paths: KotlinPaths, arguments: K2JVMCompilerArguments): List<File> {

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/KotlinToJVMBytecodeCompiler.java

@@ -392,6 +392,7 @@ public class KotlinToJVMBytecodeCompiler {
                 GenerationState.GenerateClassFilter.GENERATE_ALL,
                 configuration.get(JVMConfigurationKeys.DISABLE_INLINE, false),
                 configuration.get(JVMConfigurationKeys.DISABLE_OPTIMIZATION, false),
+                configuration.get(JVMConfigurationKeys.PACKAGE_FACADES_AS_MULTIFILE_CLASSES, false),
                 diagnosticHolder,
                 packagesWithObsoleteParts,
                 targetId,

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/config/JVMConfigurationKeys.java

@@ -42,6 +42,8 @@ public class JVMConfigurationKeys {
             CompilerConfigurationKey.create("disable inline");
     public static final CompilerConfigurationKey<Boolean> DISABLE_OPTIMIZATION =
             CompilerConfigurationKey.create("disable optimization");
+    public static final CompilerConfigurationKey<Boolean> PACKAGE_FACADES_AS_MULTIFILE_CLASSES =
+            CompilerConfigurationKey.create("compile package facades as multifile classes");
 
     public static final CompilerConfigurationKey<IncrementalCompilationComponents> INCREMENTAL_COMPILATION_COMPONENTS =
             CompilerConfigurationKey.create("incremental cache provider");