JavaScript Class Prototype Assignment not Recognized for IntelliSense

[mjbvz]

From http://stackoverflow.com/questions/43354977/how-can-i-make-intellisense-reference-a-js-file-in-another-folder

TypeScript Version: 2.2.2

Code

/**
 * @class
 */
function MyClass() { this.xyz = 1; }
MyClass.prototype = { abc: 2 };

const x = new MyClass()

Expected behavior:
Suggestions on x know about the property xyz from the class itself, and abc from the prototype

Actual behavior:
Only a suggestion for xyz is shown

[sandersn]

Note that this works for var MyClass = function { this.xyz = 1; }! The compiler's special-case for a combined definition just assumes that it only happens with function expressions, not with function declarations.