Add -Xuse-old-class-files-reading CLI argument

By default we use the fast implementation in CLI compiler,
but in the most of the tests the old one is enabled

Also add tests on CompiledJava with the fast class reading
implementation

compiler/frontend.java/src/org/jetbrains/kotlin/config/JVMConfigurationKeys.java

@@ -107,4 +107,7 @@ public class JVMConfigurationKeys {
 
     public static final CompilerConfigurationKey<Boolean> IR =
             CompilerConfigurationKey.create("IR");
+
+    public static final CompilerConfigurationKey<Boolean> USE_FAST_CLASS_FILES_READING =
+            CompilerConfigurationKey.create("use fast class files reading implementation [experimental]");
 }