Informal tests for augmented HostEnsureCanCompileStrings

test.js

// Run in the context of a HostEnsureCanCompileStrings callout that
// throws an EvalError (from the callee realm) for string values, and
// arrays.

const PASS = {}, FAIL = {};

function tryCompileAsFunctionBody(description, source, expectedStatus) {
  let status = FAIL;
  try {
    new Function(source);
    status = PASS;
  } catch (ex) {
    if (!(ex instanceof EvalError)) {
      $ERROR(`Function host check failed with unexpected error type: ${ description }`);
      return;
    }
    if (status !== expectedStatus) {
      $ERROR(
          expectedStatus === PASS
          ? `Function() host check should not have failed: ${ description }`
          : `Function () host check should not have passed: ${ description }`
        );
    }
  }
}

tryCompileAsFunctionBody('raw string value', '/*string*/', FAIL);
tryCompileAsFunctionBody('object', { toString() { return '/*object*/' } }, PASS);
tryCompileAsFunctionBody('array', '[ "/*array*/" ]', FAIL);
// TODO: call from another realm to test callee vs caller realms.