GlobalISel: Fix broken parameter documentation

Author: arsenm

llvm/include/llvm/CodeGen/GlobalISel/MachineIRBuilder.h

@@ -1181,7 +1181,7 @@ class MachineIRBuilder {
                                 const SrcOp &Op0, const SrcOp &Op1,
                                 std::optional<unsigned> Flags = std::nullopt);
 
-  /// Build and insert a \p Res = G_IS_FPCLASS \p Pred\p Src, \p Mask
+  /// Build and insert a \p Res = G_IS_FPCLASS \p Pred, \p Src, \p Mask
   MachineInstrBuilder buildIsFPClass(const DstOp &Res, const SrcOp &Src,
                                      unsigned Mask) {
     return buildInstr(TargetOpcode::G_IS_FPCLASS, {Res},