Content Assist: Alloy: Objects from view xml are not shown in content assist inside a controller js file

The content assist does not shown the objects created in the view xml file.

This is a regression as the issue does not occur in studio 3.3.0

Steps to Reproduce:
1. Create an Alloy project
2. Copy the below xml code in index.xml

<Alloy>

	<TabGroup id='tabgroup'>

		<Tab id='tab1'>

			<Window class="container">

				<View id='view'>

					<Label id="label">Hello, World</Label>

					<Button id="button" onClick="doClick">Click</Button>

				</View>

			</Window>

		</Tab>

	</TabGroup>

</Alloy>

3. In the index.js file, type '$' followed by '.' to show content assist with objects from index.xml

Actual Result:
The content assist does not come up and no objects from the xml file are shown in the content assist.

Expected Result:
Content assist should show objects from index.xml