Function instNames

__tests__/extraction.test.ts:3118–3121

(code: string)

    // they emitted no constructor reference, unlike heap `new Calculator(0)`. An
    // `instantiates` ref to the constructed type is now emitted for both.
    const instNames = (code: string) =>
      extractFromSource('f.cpp', `void run() {\n${code}\n}`)
        .unresolvedReferences.filter((r) => r.referenceKind === 'instantiates')
        .map((r) => r.referenceName);

    it('emits an instantiates ref for direct-init and brace-init', () => {
      expect(instNames('Calculator calc(0);')).toEqual(['Calculator']);