Function fires

test/compute-engine/fungrim-loader.test.ts:1404–1414

(decl: string)

      counts: {
        rules: 3,
        byPurpose: { simplify: 3 },
        byClass: { identity: 3 },
        byTarget: { simplify: 3 },
      },
      ledger: {},
    },
    declarations: {
      HH: { signature: 'set<complex>' },
      PartCmpF: { signature: '(complex) -> complex' },
      MemberF: { signature: '(complex) -> complex' },
      ComplexF: { signature: '(complex) -> complex' },
    },
    rules: [
      {