Doxygenize the documentation comments
There were many // comment used to document classes, functions etc. but
those are not picked up by doxygen which expects /// comments. This
converts many comments from // to /// in order to improve the generated
documentation.
BUG=
R=jvoung@chromium.org, kschimpf@google.com
Review URL: https://codereview.chromium.org/1216963007.
diff --git a/src/IceTargetLowering.cpp b/src/IceTargetLowering.cpp
index 33a914d..671bab0 100644
--- a/src/IceTargetLowering.cpp
+++ b/src/IceTargetLowering.cpp
@@ -6,13 +6,14 @@
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
-//
-// This file implements the skeleton of the TargetLowering class,
-// specifically invoking the appropriate lowering method for a given
-// instruction kind and driving global register allocation. It also
-// implements the non-deleted instruction iteration in
-// LoweringContext.
-//
+///
+/// \file
+/// This file implements the skeleton of the TargetLowering class,
+/// specifically invoking the appropriate lowering method for a given
+/// instruction kind and driving global register allocation. It also
+/// implements the non-deleted instruction iteration in
+/// LoweringContext.
+///
//===----------------------------------------------------------------------===//
#include "IceTargetLowering.h"
