added _parent and context to data returned by #with in helpers #1840

[smmhatami]

This is a fix to solve Issue 1840. Resolves #1840. Added _parent and context to data returned by with in helpers just like each does to each iterated field.
I just couldn't find where and how should I add tests for this functionality, i would be glad if you help me with that.
thanks!

[jaylinski]

I think the right place for a test would be here:

handlebars.js/spec/builtins.js

Lines 136 to 184 in b4a54ad

	describe('#with', function () {
	it('with', function () {
	expectTemplate('{{#with person}}{{first}} {{last}}{{/with}}')
	.withInput({
	person: {
	first: 'Alan',
	last: 'Johnson',
	},
	})
	.toCompileTo('Alan Johnson');
	});
	it('with with function argument', function () {
	expectTemplate('{{#with person}}{{first}} {{last}}{{/with}}')
	.withInput({
	person: function () {
	return {
	first: 'Alan',
	last: 'Johnson',
	};
	},
	})
	.toCompileTo('Alan Johnson');
	});
	it('with with else', function () {
	expectTemplate(
	'{{#with person}}Person is present{{else}}Person is not present{{/with}}'
	).toCompileTo('Person is not present');
	});
	it('with provides block parameter', function () {
	expectTemplate('{{#with person as |foo|}}{{foo.first}} {{last}}{{/with}}')
	.withInput({
	person: {
	first: 'Alan',
	last: 'Johnson',
	},
	})
	.toCompileTo('Alan Johnson');
	});
	it('works when data is disabled', function () {
	expectTemplate('{{#with person as |foo|}}{{foo.first}} {{last}}{{/with}}')
	.withInput({ person: { first: 'Alan', last: 'Johnson' } })
	.withCompileOptions({ data: false })
	.toCompileTo('Alan Johnson');
	});
	});

Tests can be run via npm install and npm run test.

[jaylinski]

@smmhatami Can you add a test for this? (See comment above on where to add it.)