Typo

src/Tools/Source/RunTests/Cache/AssemblyUtil.cs

@@ -26,7 +26,7 @@ internal AssemblyUtil(string binariesPath)
         }
 
         /// <summary>
-        /// There are some DLLs whose abscence is expected and should not be considered an error.  These
+        /// There are some DLLs whose absence is expected and should not be considered an error.  These
         /// are assemblies which are either light up components or are a part of the VS reference graph
         /// which are never deployed for our tests.
         ///

src/Workspaces/Core/Portable/FindSymbols/SymbolTree/SymbolTreeInfo_Serialization.cs

@@ -89,7 +89,7 @@ internal partial class SymbolTreeInfo : IObjectWritable
                 cancellationToken.ThrowIfCancellationRequested();
 
                 // Couldn't read from the persistence service.  If we've been asked to only load
-                // data and not create new instances in their absense, then there's nothing left
+                // data and not create new instances in their absence, then there's nothing left
                 // to do at this point.
                 if (loadOnly)
                 {