Tweak the data layout for the on-disk hash table of identifiers in the PCH file so that the key layout matches that of the PTH key layout

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70066 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/PCHReader.cpp b/lib/Frontend/PCHReader.cpp
index 005436d..2d89477 100644
--- a/lib/Frontend/PCHReader.cpp
+++ b/lib/Frontend/PCHReader.cpp
@@ -1245,8 +1245,8 @@
   static std::pair<unsigned, unsigned>
   ReadKeyDataLength(const unsigned char*& d) {
     using namespace clang::io;
-    unsigned KeyLen = ReadUnalignedLE16(d);
     unsigned DataLen = ReadUnalignedLE16(d);
+    unsigned KeyLen = ReadUnalignedLE16(d);
     return std::make_pair(KeyLen, DataLen);
   }