OnEnter formatting Test is failing on CI

[DonJayamanne]

2018-12-12T23:36:08.0636695Z 
2018-12-12T23:36:08.0636912Z     ✖ "before each" hook for "Formatting line with @" -- error: Failed to show text document file:///d%3A/a/1/s/src/test/pythonFiles/formatting/fileToFormatOnEnter.py, should show in editor #vs.editor.ICodeEditor:1,$model283
2018-12-12T23:36:08.0637113Z 
2018-12-12T23:36:08.0717483Z ##[error]out\test\format\extension.onEnterFormat.test.js(,): error : FAILED Formatting - OnEnter provider :: "before each" hook for "Formatting line with @"
2018-12-12T23:36:08.0726663Z ##[debug]Processed: ##vso[task.logissue type=error;sourcepath=D:\a\1\s\out\test\format\extension.onEnterFormat.test.js;]FAILED Formatting - OnEnter provider :: "before each" hook for "Formatting line with @"
2018-12-12T23:36:08.0726772Z 

[DonJayamanne]

No longer an issue.