When generating a call graph, the extensions sees typecasting like address(this) or address(some contract/interface) as a function and this is not only incorrect, but also visually clutters the chart. See example:
I think the fix should be pretty easy on this, just adding logic to ignore a function if it's name is address since that's impossible anyway in Solidity because the term is reserved for the type.
see original: https://github.com/Consensys/vscode-solidity-auditor/issues/134