From e1be5c98ab2066a166375b4cbd51da404adf075b Mon Sep 17 00:00:00 2001
From: CyrusNajmabadi <cyrusn@microsoft.com>
Date: Mon, 16 May 2016 14:33:10 -0700
Subject: [PATCH] Comment code.

---
 .../SyntaxFactsService/AbstractSyntaxFactsService.cs        | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/Workspaces/Core/Portable/LanguageServices/SyntaxFactsService/AbstractSyntaxFactsService.cs b/src/Workspaces/Core/Portable/LanguageServices/SyntaxFactsService/AbstractSyntaxFactsService.cs
index 1a7178d4548..f634c692ed1 100644
--- a/src/Workspaces/Core/Portable/LanguageServices/SyntaxFactsService/AbstractSyntaxFactsService.cs
+++ b/src/Workspaces/Core/Portable/LanguageServices/SyntaxFactsService/AbstractSyntaxFactsService.cs
@@ -11,6 +11,12 @@ internal abstract class AbstractSyntaxFactsService
     {
         private readonly static ObjectPool<List<Dictionary<string, string>>> s_aliasMapListPool =
             new ObjectPool<List<Dictionary<string, string>>>(() => new List<Dictionary<string, string>>());
+
+        // Note: these names are stored case insensitively.  That way the alias mapping works 
+        // properly for VB.  It will mean that our inheritance maps may store more links in them
+        // for C#.  However, that's ok.  It will be rare in practice, and all it means is that
+        // we'll end up examining slightly more types (likely 0) when doing operations like 
+        // Find all references.
         private readonly static ObjectPool<Dictionary<string, string>> s_aliasMapPool =
             new ObjectPool<Dictionary<string, string>>(() => new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase));
 
-- 
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