Minor spelling correction.

[sidneym]

Closed by commit rL216667 (authored by @sidneym).

llvm/trunk/lib/Target/Hexagon/HexagonHardwareLoops.cpp

private:
     MachineBasicBlock *createPreheaderForLoop(MachineLoop *L);
   };
 
   char HexagonHardwareLoops::ID = 0;
 #ifndef NDEBUG
   int HexagonHardwareLoops::Counter = 0;
 #endif
 
-  /// \brief Abstraction for a trip count of a loop. A smaller vesrsion
+  /// \brief Abstraction for a trip count of a loop. A smaller version
   /// of the MachineOperand class without the concerns of changing the
   /// operand representation.
   class CountValue {
   public:
     enum CountValueType {
       CV_Register,
       CV_Immediate
     };