[NFC][regalloc] Fix typo in llvm/lib/CodeGen/AllocationOrder.h.

Author: tclin914

llvm/lib/CodeGen/AllocationOrder.h

@@ -48,7 +48,7 @@ class LLVM_LIBRARY_VISIBILITY AllocationOrder {
   public:
     Iterator(const AllocationOrder &AO, int Pos) : AO(AO), Pos(Pos) {}
 
-    /// Return true if the curent position is that of a preferred register.
+    /// Return true if the current position is that of a preferred register.
     bool isHint() const { return Pos < 0; }
 
     /// Return the next physical register in the allocation order.
@@ -85,7 +85,7 @@ class LLVM_LIBRARY_VISIBILITY AllocationOrder {
                                 const RegisterClassInfo &RegClassInfo,
                                 const LiveRegMatrix *Matrix);
 
-  /// Create an AllocationOrder given the Hits, Order, and HardHits values.
+  /// Create an AllocationOrder given the Hints, Order, and HardHints values.
   /// Use the create method above - the ctor is for unittests.
   AllocationOrder(SmallVector<MCPhysReg, 16> &&Hints, ArrayRef<MCPhysReg> Order,
                   bool HardHints)