Use "-Xskip-metadata-version-check" to load pre-release classes

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

@@ -95,7 +95,7 @@ public class K2JVMCompilerArguments extends CommonCompilerArguments {
     @Argument(value = "Xallow-kotlin-package", description = "Allow compiling code in package 'kotlin'")
     public boolean allowKotlinPackage;
 
-    @Argument(value = "Xskip-metadata-version-check", description = "Try loading binary incompatible classes, may cause crashes")
+    @Argument(value = "Xskip-metadata-version-check", description = "Load classes with bad metadata version anyway (incl. pre-release classes)")
     public boolean skipMetadataVersionCheck;
 
     @Argument(value = "Xdump-declarations-to", description = "Path to JSON file to dump Java to Kotlin declaration mappings")

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

@@ -39,6 +39,7 @@ import org.jetbrains.kotlin.compiler.plugin.cliPluginUsageString
 import org.jetbrains.kotlin.config.*
 import org.jetbrains.kotlin.incremental.components.SourceRetentionAnnotationHandler
 import org.jetbrains.kotlin.load.java.JvmAbi
+import org.jetbrains.kotlin.load.kotlin.DeserializedDescriptorResolver
 import org.jetbrains.kotlin.load.kotlin.JvmMetadataVersion
 import org.jetbrains.kotlin.load.kotlin.incremental.components.IncrementalCompilationComponents
 import org.jetbrains.kotlin.script.KotlinScriptDefinitionFromAnnotatedTemplate
@@ -115,8 +116,10 @@ class K2JVMCompiler : CLICompiler<K2JVMCompilerArguments>() {
             return ExitCode.OK
         }
 
-       if (arguments.skipMetadataVersionCheck) {
+        if (arguments.skipMetadataVersionCheck) {
             JvmMetadataVersion.skipCheck = true
+            @Suppress("DEPRECATION")
+            DeserializedDescriptorResolver.IS_PRE_RELEASE = true
         }
 
         if (arguments.includeRuntime) {