PCCOR_SIGNATURE from GetTypeSpecFromToken

How do I interpret the PCCOR_SIGNATURE from GetTypeSpecToken() when it is a
generic parameter type (ie ELEMENT_TYPE_VAR)?

The GetTypeSpecToken was called after GetGenericParamConstraintProps.
The sample mdinfo.cpp included with the old SDK didn't show how to handle
the binary data when it was a generic parameter type.

Any snippets of code on this or help would be appreciated.