hapi instrumentation: this not bound for plugin register method

[seemk]

What version of OpenTelemetry are you using?

@opentelemetry/instrumentation-hapi 0.45.0

What did you do?

import * as hapi from '@hapi/hapi';

const plugin1 = {
  name: 'plugin1',
  value: 42,
  register: async function (server: hapi.Server, options: any) {
    server.route({
      method: 'GET',
      path: '/1',
      handler: (request, h) => {
        return `hello, world, ${this.value} ${options.name}`;
      },
    });
  },
};

// OR

class MyPlugin implements hapi.PluginBase<any, any> {
  public name: string = 'MyPlugin';
  constructor(public value: number) {}

  public register(server: hapi.Server): void | Promise<void> {
      server.route({
        method: 'GET',
        path: '/2',
        handler: async (req, h) => {
          return `${this.value}`; // this is undefined
        }
      });
    }
}

await server.register([plugin1, new MyPlugin(42)]);

What did you expect to see?

Application not returning HTTP 500.

What did you see instead?

Application returning HTTP 500 due to undefined this.

[pichlermarc]

Fixed by #2625