Basis of vulnerability checks.
Initialize Check with Checks.
Add result to result list, which is used to check for duplicates
Process calls and check if they include user input
Note that cookies are included in current expression
Default Sexp processing. Iterates over each value in the Sexp and processes them if they are also Sexps.
Does not actually process string interpolation, but notes that it occurred.
Note that params are included in current expression
[Validate]