Simplify PreprocessorOptions, it doesn't need abstracted field access.

llvm-svn: 89047
diff --git a/clang/lib/Frontend/CompilerInstance.cpp b/clang/lib/Frontend/CompilerInstance.cpp
index 42352df..0365761 100644
--- a/clang/lib/Frontend/CompilerInstance.cpp
+++ b/clang/lib/Frontend/CompilerInstance.cpp
@@ -167,8 +167,8 @@
                                      FileManager &FileMgr) {
   // Create a PTH manager if we are using some form of a token cache.
   PTHManager *PTHMgr = 0;
-  if (!PPOpts.getTokenCache().empty())
-    PTHMgr = PTHManager::Create(PPOpts.getTokenCache(), Diags);
+  if (!PPOpts.TokenCache.empty())
+    PTHMgr = PTHManager::Create(PPOpts.TokenCache, Diags);
 
   // FIXME: Don't fail like this.
   if (Diags.hasErrorOccurred())