test: enable "-d=panic" by default for errorcheck*

Fixes #43311

Change-Id: I134d6c0524c198998a3c093dd3a8144052e8f7a9
Reviewed-on: https://go-review.googlesource.com/c/go/+/298715
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
diff --git a/test/run.go b/test/run.go
index 570768e..4c01886 100644
--- a/test/run.go
+++ b/test/run.go
@@ -725,7 +725,7 @@
 		// Fail if wantError is true and compilation was successful and vice versa.
 		// Match errors produced by gc against errors in comments.
 		// TODO(gri) remove need for -C (disable printing of columns in error messages)
-		cmdline := []string{goTool(), "tool", "compile", "-C", "-e", "-o", "a.o"}
+		cmdline := []string{goTool(), "tool", "compile", "-d=panic", "-C", "-e", "-o", "a.o"}
 		// No need to add -dynlink even if linkshared if we're just checking for errors...
 		cmdline = append(cmdline, flags...)
 		cmdline = append(cmdline, long)
@@ -830,6 +830,7 @@
 		}
 
 	case "errorcheckdir", "errorcheckandrundir":
+		flags = append(flags, "-d=panic")
 		// Compile and errorCheck all files in the directory as packages in lexicographic order.
 		// If errorcheckdir and wantError, compilation of the last package must fail.
 		// If errorcheckandrundir and wantError, compilation of the package prior the last must fail.
@@ -1179,7 +1180,7 @@
 			t.err = fmt.Errorf("write tempfile:%s", err)
 			return
 		}
-		cmdline := []string{goTool(), "tool", "compile", "-e", "-o", "a.o"}
+		cmdline := []string{goTool(), "tool", "compile", "-d=panic", "-e", "-o", "a.o"}
 		cmdline = append(cmdline, flags...)
 		cmdline = append(cmdline, tfile)
 		out, err = runcmd(cmdline...)