cmd/compile/internal/ir: add missing import to mknode.go

CL 426257 changed ioutil.WriteFile to os.WriteFile but didn't add the
corresponding import for package os.

Change-Id: I7be32138463b44aabc8e36ce353f6dc1376cbe60
Reviewed-on: https://go-review.googlesource.com/c/go/+/433415
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>

diff --git a/src/cmd/compile/internal/ir/mknode.go b/src/cmd/compile/internal/ir/mknode.go
index 4630a7a5b84af4d0a1731b85205b4feffc46859a..68d8999f832bf6b5eb11efcf439e91ee1bd6d6e2 100644 (file)
--- a/src/cmd/compile/internal/ir/mknode.go
+++ b/src/cmd/compile/internal/ir/mknode.go
@@ -19,6 +19,7 @@ import (
        "go/token"
        "io/fs"
        "log"
+       "os"
        "sort"
        "strings"
 )