add fixes for code verification happyness.

signed-off-by: jcarsey
reviewed-by: jljusten

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11935 6f19259b-4bc3-4df7-8a09-765794883524

ShellPkg/Library/UefiShellLevel2CommandsLib/Cp.c

@@ -254,6 +254,11 @@ ValidateAndCopyFiles(
   ASSERT(FileList != NULL);
   ASSERT(DestDir  != NULL);
 
+  //
+  // We already verified that this was present.
+  //
+  ASSERT(Cwd      != NULL);
+
   //
   // If we are trying to copy multiple files... make sure we got a directory for the target...
   //