Doxygenize the documentation comments

src/IceConditionCodesARM32.h

Index: src/IceConditionCodesARM32.h
diff --git a/src/IceConditionCodesARM32.h b/src/IceConditionCodesARM32.h
index b98c7706c92a71a3f6aa65513a9a63b2e1934fb6..4bad006c295d37fdf8fe9ba61433aaaeb80118d6 100644
--- a/src/IceConditionCodesARM32.h
+++ b/src/IceConditionCodesARM32.h
@@ -25,8 +25,8 @@ class CondARM32 {
   CondARM32 &operator=(const CondARM32 &) = delete;
 
 public:
-  // An enum of codes used for conditional instructions. The enum value
-  // should match the value used to encode operands in binary instructions.
+  /// An enum of codes used for conditional instructions. The enum value
+  /// should match the value used to encode operands in binary instructions.
   enum Cond {
 #define X(tag, encode, opp, emit) tag = encode,
     ICEINSTARM32COND_TABLE