switch SourceManager from using an std::map and std::list of 
ContentCache objects to using a densemap and list, and allocating
the ContentCache objects from a bump pointer.  This does not speed
up or slow down things substantially, but gives us control over 
their alignment.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63628 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Driver/CacheTokens.cpp b/Driver/CacheTokens.cpp
index c64797e..51f5027 100644
--- a/Driver/CacheTokens.cpp
+++ b/Driver/CacheTokens.cpp
@@ -433,7 +433,7 @@
   
   for (SourceManager::fileinfo_iterator I = SM.fileinfo_begin(),
        E = SM.fileinfo_end(); I != E; ++I) {
-    const SrcMgr::ContentCache &C = *I;
+    const SrcMgr::ContentCache &C = *I->second;
     const FileEntry *FE = C.Entry;
     
     // FIXME: Handle files with non-absolute paths.