Fix FileNotFoundEx crash when Fold happens on untitled: scheme doc#839

Merged

TylerLeonhardt merged 2 commits intomasterfrom

rkeithhill/fix-vscode-1676-fold-untitled

Jan 8, 2019

Commits on Jan 1, 2019

Fix FileNotFoundEx crash when Fold happens on untitled: scheme doc
rkeithhill
committed

Commits on Jan 3, 2019

Address PR feedback, use TryGetFile() instead of modifying GetFile
rkeithhill
committed