safeLoadAll does not respect JSON.parse behaviour

[prydonius]

safeLoadAll does not seem to respect the {json: true} option the same way safeLoad and loadAll do, not sure if this is the case for other options.

Example:

const yaml = require("js-yaml");

const yamlWithDupKey = `
test: true
test: false
`;

// Does not throw YAMLException duplicate key error
console.log(yaml.safeLoad(yamlWithDupKey, {json:true}));

// Does not throw YAMLException duplicate key error
console.log(yaml.loadAll(yamlWithDupKey, undefined, {json:true}));

// Unexpectedly throws YAMLException duplicate key error
console.log(yaml.safeLoadAll(yamlWithDupKey, undefined, {json:true}));

Output:

{ test: false }
[ { test: false } ]

/Users/adnan/Playground/test-yaml/node_modules/js-yaml/lib/js-yaml/loader.js:171
  throw generateError(state, message);
  ^
YAMLException: duplicated mapping key at line 3, column 1:
    test: false
    ^
    at generateError (/Users/adnan/Playground/test-yaml/node_modules/js-yaml/lib/js-yaml/loader.js:165:10)
    at throwError (/Users/adnan/Playground/test-yaml/node_modules/js-yaml/lib/js-yaml/loader.js:171:9)
    at storeMappingPair (/Users/adnan/Playground/test-yaml/node_modules/js-yaml/lib/js-yaml/loader.js:308:7)
    at readBlockMapping (/Users/adnan/Playground/test-yaml/node_modules/js-yaml/lib/js-yaml/loader.js:1071:9)
    at composeNode (/Users/adnan/Playground/test-yaml/node_modules/js-yaml/lib/js-yaml/loader.js:1332:12)
    at readDocument (/Users/adnan/Playground/test-yaml/node_modules/js-yaml/lib/js-yaml/loader.js:1492:3)
    at loadDocuments (/Users/adnan/Playground/test-yaml/node_modules/js-yaml/lib/js-yaml/loader.js:1548:5)
    at loadAll (/Users/adnan/Playground/test-yaml/node_modules/js-yaml/lib/js-yaml/loader.js:1556:19)
    at Object.safeLoadAll (/Users/adnan/Playground/test-yaml/node_modules/js-yaml/lib/js-yaml/loader.js:1585:12)
    at Object.<anonymous> (/Users/adnan/Playground/test-yaml/test.js:15:18)

[FauxFaux]

safeLoadAll ignores all options because the insane optional argument code is just plain wrong in at least two ways.

[puzrin]

Close as self-fixed in 4.0 (see dev banch).

safe* mehods were dropped.