Update project file

src/Dependencies/PooledObjects/Microsoft.CodeAnalysis.PooledObjects.shproj

 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
-    <ProjectGuid>cd77a8cc-2885-47a7-b99c-fbf13353400b</ProjectGuid>
+    <ProjectGuid>c1930979-c824-496b-a630-70f5369a636f</ProjectGuid>
     <MinimumVisualStudioVersion>14.0</MinimumVisualStudioVersion>
   </PropertyGroup>
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />