Add more PRI.64 macros for MSVC and use them throughout the codebase.

llvm-svn: 143799
diff --git a/llvm/lib/Support/Timer.cpp b/llvm/lib/Support/Timer.cpp
index 03ac963..598e8ad 100644
--- a/llvm/lib/Support/Timer.cpp
+++ b/llvm/lib/Support/Timer.cpp
@@ -184,7 +184,7 @@
   OS << "  ";
   
   if (Total.getMemUsed())
-    OS << format("%9lld  ", (long long)getMemUsed());
+    OS << format("%9" PRId64 "  ", (int64_t)getMemUsed());
 }