SAWSDL Eclipse tests

I have done some further testing on the following developer tools:

IBM WebSphere Integration Developer 6.0.1
Eclipse 3.2.1 with Web Tools Platform 1.5.2
Eclipse 3.2.2 with Web Tools Platform 1.5.4

In each case, WSDL files with attrExtensions under operation can be created
and edited without errors.  However, in each tool, when an explicit
validation is done, the attrExtensions element is flagged as invalid.

Eclipse uses wsdl4j to parse WSDL files.  The two wsdl4j parsers in the two
Eclipse Web Tools Platform levels both use the same xsd file - the one that
allows element extension for operation , but they still do not accept the
extension element as used.

However, in all three tools, I could still successfully generate code from
the WSDL file.  Documenting this fact may allow eclipse-based attrExtension
usage to proceed.

Regards,
Joel