Introduction of improved switch lowering.

src/IceRegistersX8632.h

Index: src/IceRegistersX8632.h
diff --git a/src/IceRegistersX8632.h b/src/IceRegistersX8632.h
index f0baec461208519b79e456a9f1cd38d674a186ab..da920e28d9552238ed0773fcddfe82f179df15ab 100644
--- a/src/IceRegistersX8632.h
+++ b/src/IceRegistersX8632.h
@@ -68,8 +68,8 @@ public:
         Encoded_Not_ByteReg = -1
   };
 
-  /// An enum of X87 Stack Registers. The enum value does match the encoding used
-  /// to binary encode register operands in instructions.
+  /// An enum of X87 Stack Registers. The enum value does match the encoding
+  /// used to binary encode register operands in instructions.
   enum X87STRegister {
 #define X(val, encode, name) Encoded_##val encode,
     X87ST_REGX8632_TABLE