This is in order to avoid name clash with the often so-named IPA type for data-
flow nodes. The name clash is not problematic because they are both in scope,
but because (cached) IPA types with overlapping names are known to sometimes
result in re-evaluation of cached stages, when one of the IPA types gets an
internal `#2` suffix in one query run, and the other IPA type gets the suffix
in another run.

Fix tests.

DIL before
```
                                                   /* AST::AstNode */ AST#87953007::Cached::TAstNode result) =
  fastTC(AST#a6718388::AstNode::getAChild#0#dispred#ff/2)
.

Synthesis#d9ff06b1::isInDesugaredContext#1#f(/* AST::AstNode */ unique AST#87953007::Cached::TAstNode n)
:-
  exists(int arg1, /* AST::AstNode */ dontcare AST#87953007::Cached::TAstNode _ |
    arg1 = -1, AST#87953007::Cached::getSynthChild#2(_, arg1, n)
  );
  exists(/* AST::AstNode */ AST#87953007::Cached::TAstNode call_result#2 |
    exists(int arg1,
           /* AST::AstNode */ dontcare AST#87953007::Cached::TAstNode _ |
      arg1 = -1, AST#87953007::Cached::getSynthChild#2(_, arg1, call_result#2)
    ),
    #AST#a6718388::AstNode::getAChild#0#dispredPlus#ff(call_result#2, n)
  )
.
```

DIL after
```
incremental
Synthesis#d9ff06b1::isInDesugaredContext#1#f(/* AST::AstNode */ unique AST#87953007::Cached::TAstNode n)
:-
  exists(int arg1, /* AST::AstNode */ dontcare AST#87953007::Cached::TAstNode _ |
    arg1 = -1, AST#87953007::Cached::getSynthChild#2(_, arg1, n)
  );
  exists(/* AST::AstNode */ AST#87953007::Cached::TAstNode any#expr##2 |
    rec Synthesis#d9ff06b1::isInDesugaredContext#1#f(any#expr##2),
    exists(cached dontcare string _ |
      AST#a6718388::AstNode::getAChild#1#dispred(any#expr##2, _, n)
    )
  )
| [base_case]
  exists(int arg1, /* AST::AstNode */ dontcare AST#87953007::Cached::TAstNode _ |
    arg1 = -1, AST#87953007::Cached::getSynthChild#2(_, arg1, n)
  )
| [delta_order]
  exists(/* AST::AstNode */ AST#87953007::Cached::TAstNode any#expr##2 |
    delta previous rec Synthesis#d9ff06b1::isInDesugaredContext#1#f(any#expr##2),
    project#AST#a6718388::AstNode::getAChild#1#dispred(any#expr##2, n)
  ),
  not(previous rec Synthesis#d9ff06b1::isInDesugaredContext#1#f(n))
.
``

…for-unused-parameters-2

Go: make `ParameterNode`s for unused parameters #2 (make a disjoint class for unused ones)

C++: Fix zstd and clean up test

Test: Remove location parsing

Go: Add database source models for the github.com/couchbase/gocb package (#2)

Go: Add `database` source models for the `squirrel` package (#2)

JS: Add isMiddlewareSetup() hook to Routing model

Implement first stage cryptography modelling and queries

…8e3d-0895-49ec-9025-a9864c8e5367

Fix generate-code-scanning-query-list.py to handle empty code-quality-extended suites