Reorganize built-in initialization to separate the creation of target builtins from marking IdentifierInfos as builtins. No functionality change

llvm-svn: 69774
diff --git a/clang/lib/Frontend/PCHReader.cpp b/clang/lib/Frontend/PCHReader.cpp
index 6a6cd64..7018b26 100644
--- a/clang/lib/Frontend/PCHReader.cpp
+++ b/clang/lib/Frontend/PCHReader.cpp
@@ -1762,6 +1762,9 @@
     if (Pos == IdTable->end())
       continue;
 
+    fprintf(stderr, "Looked up pre-allocated IdentifierInfo \"%s\"\n",
+            II->getName());
+
     // Dereferencing the iterator has the effect of populating the
     // IdentifierInfo node with the various declarations it needs.
     (void)*Pos;