Problems window is not populated with errors during compile

[amitkumarj1979]

Summary

When we deploy a file to Salesforce and there are errors reported during compilation. The same are shown in Output window. They should also be shown in the Problems window.

Steps To Reproduce:

1. In an Apex class, put something that will result in a syntax error on salesforce side.
2. Compile the class.
3. Output window will show errors .
4. Problem window is blank.

Expected result

Problem window should have the errors listed against the file as well.

Actual result

Problem window is blank.

Additional information

Feel free to attach a screenshot.

VS Code Version: 1.26.1

SFDX CLI Version: Pre release

OS and version: Windows 10

[vazexqi]

Duplicate of #588 .