Fix nits

Author: zoecarver

lib/SILGen/SILGenFunction.h

@@ -670,9 +670,9 @@ class LLVM_LIBRARY_VISIBILITY SILGenFunction
   ///
   /// \returns Lowered index arguments.
   /// \param subscript - The subscript decl who's arguments are being lowered.
-  /// \param subs - Used to get subscript function type and to substitute
-  /// generic args. \param indexExpr - An expression holding the indices of the
-  /// subscript (either a TupleExpr or a ParanExpr).
+  /// \param subs - Used to get subscript function type and to substitute generic args.
+  /// \param indexExpr - An expression holding the indices of the
+  /// subscript (either a TupleExpr or a ParenExpr).
   SmallVector<ManagedValue, 4>
   emitKeyPathSubscriptOperands(SubscriptDecl *subscript, SubstitutionMap subs,
                                Expr *indexExpr);