Write a namespaced class name with dots, and refuse a document the parser objects to

[belisoful]

Fixes #4.

The provider's class name reached the document as it stood: in the target namespace, urn:App\Soap\QuoteProviderwsdl, and in the definitions, portType, binding, service and port names and the QNames referring to them. A backslash is valid in neither a URI nor an NCName. libxml loads such a document and warns about the namespace, PRADO's error handler turns the warning into an exception, and TSoapServer::getWsdl() threw for every namespaced provider. The unreleased loadOrFail() hid the warning behind @ and handed the document back, which is worse: it parses, and no client accepts it.

A namespaced type had a related gap. The @PARAM, @return, @var and @soaptype grammars accepted only \w, so App\Soap\Quote was cut at the first separator and reflected on as a class named App.

Separate the class name, which reflection needs, from the name the document carries. Wsdl::documentName() replaces each separator with a dot and drops a leading one, so App\Soap\QuoteProvider is written as App.Soap.QuoteProvider, valid as both a URN and an NCName. The full name is kept rather than the short one, so two classes sharing a short name do not collide. Wsdl maps the service name once and writes the mapped name everywhere, and convertType() maps a type name the same way while declaring it and referring to it, so every tns: reference resolves to the complexType it names, the Array form included. The four tags take a fully qualified name, with or without the leading separator; a short name resolves in the global namespace as it always did.

A class name holds nothing else the mapping touches, so a global class produces the document it always did, byte for byte. Two documents generated before this change are committed under tests/unit/Fixtures and compared whole, in both styles.

loadOrFail() no longer hides anything. It keeps libxml's errors internal, so no warning reaches an error handler, and refuses a document the parser said anything about, naming what it said. The first parse now catches an invalid namespace, so the re-parse of the serialized document is gone. A service name that is not a class name and yields a URN the parser rejects, such as one holding a quote or a space, is refused where it loaded with a hidden warning before.

The SOAP client and server of PHP accept the document of a namespaced provider in both styles: a client reads the signatures and the dotted struct names, and a client calling a server in the same process round-trips a call, through an adapter in the document style, where PHP hands a method the request wrapper as one object and encodes what it returns as the response wrapper.