<AssemblyVersion> missing in <AssemblyInfo> tag

[TianqiZhang]

Take M:System.Data.SqlClient.SqlDataReader.GetColumnSchema for example, you can see in its ECMAXML file, there's a assembly info tag that does not have any versions at all:

      <AssemblyInfo>
        <AssemblyName>System.Data</AssemblyName>
      </AssemblyInfo>

[joelmartinez]

This will probably be mitigated in #373, but leaving open to verify

[joelmartinez]

I've opened a separate internal issue for this particular item. /cc @mimisasouvanh