Fixes #14159

The well-known ValueTuple types are very special in that you can ask for
the SymbolInfo on the ValueTuple token and not get back the ValueTuple
type. This means that the token we invoke rename on has no locations,
which Rename Tracking mistakenly interpreted as being okay to rename.
This has been fixed, and also the RenameUtilities.GetTokenRenameInfo
method has been updated to return NoSymbolsTokenInfo when it finds an
ITypeSymbol with IsTupleType.