From f88fbddfdf4090d76535ba38e9594fe97adb2c22 Mon Sep 17 00:00:00 2001
From: Andrew Arnott <andrewarnott@gmail.com>
Date: Fri, 6 Apr 2018 18:04:58 -0700
Subject: [PATCH] Don't wrap cancellation exceptions

---
 src/Microsoft.VisualStudio.Threading.Analyzers/Utils.cs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Microsoft.VisualStudio.Threading.Analyzers/Utils.cs b/src/Microsoft.VisualStudio.Threading.Analyzers/Utils.cs
index ae4a96cb5..90145cdff 100644
--- a/src/Microsoft.VisualStudio.Threading.Analyzers/Utils.cs
+++ b/src/Microsoft.VisualStudio.Threading.Analyzers/Utils.cs
@@ -49,6 +49,10 @@ internal static Action<SymbolAnalysisContext> DebuggableWrapper(Action<SymbolAna
                 {
                     handler(ctxt);
                 }
+                catch (OperationCanceledException)
+                {
+                    throw;
+                }
                 catch (Exception ex) when (LaunchDebuggerExceptionFilter())
                 {
                     throw new Exception($"Analyzer failure while processing symbol {ctxt.Symbol} at {ctxt.Symbol.Locations.FirstOrDefault()?.SourceTree?.FilePath}({ctxt.Symbol.Locations.FirstOrDefault()?.GetLineSpan().StartLinePosition.Line},{ctxt.Symbol.Locations.FirstOrDefault()?.GetLineSpan().StartLinePosition.Character}): {ex.GetType()} {ex.Message}", ex);