static String resolveFileName(Proto proto)
    {
        String outerClassname = proto.getExtraOption("java_outer_classname");
        return outerClassname == null ? ProtoUtil.toPascalCase(proto.getFile().getName().replaceAll(
                ".proto", "")).toString() : outerClassname;
    }
Generates a {@code Schema} from the code generated by the c++ v2 protoc.

@author David Yu
@created May 14, 2010
protostuff-compiler/src/main/java/io/protostuff/compiler/ProtoToJavaV2ProtocSchemaCompiler.java