cmd/compile/internal/ir: update CallExpr comment reference

CL 532795 changed CallExpr.X to CallExpr.Fun.

Change-Id: Ib2079e239a85daa4a3f5b5165c2cddc76a648b5e
Reviewed-on: https://go-review.googlesource.com/c/go/+/537175
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Auto-Submit: Michael Pratt <mpratt@google.com>

diff --git a/src/cmd/compile/internal/ir/expr.go b/src/cmd/compile/internal/ir/expr.go
index 7e7f8ac24b76338d17032be0002330a950714ce5..cea7c446d4ad1827fc514b9af53141d6211522b3 100644 (file)
--- a/src/cmd/compile/internal/ir/expr.go
+++ b/src/cmd/compile/internal/ir/expr.go
@@ -181,7 +181,7 @@ func (n *BinaryExpr) SetOp(op Op) {
        }
 }
 
-// A CallExpr is a function call X(Args).
+// A CallExpr is a function call Fun(Args).
 type CallExpr struct {
        miniExpr
        Fun       Node