dev/local_ci: use test timeout flags and add regression test

Add a regression test that fails when local_ci.sh uses -run 30m for go/llgo test, then switch both commands to -timeout 30m.

cmd/internal/test/local_ci_script_test.go

@@ -0,0 +1,37 @@
+//go:build !llgo
+// +build !llgo
+
+package test
+
+import (
+	"os"
+	"path/filepath"
+	"runtime"
+	"strings"
+	"testing"
+)
+
+func TestLocalCIScriptUsesTimeoutNotRun(t *testing.T) {
+	_, thisFile, _, ok := runtime.Caller(0)
+	if !ok {
+		t.Fatal("runtime.Caller(0) failed")
+	}
+	script := filepath.Clean(filepath.Join(filepath.Dir(thisFile), "..", "..", "..", "dev", "local_ci.sh"))
+	data, err := os.ReadFile(script)
+	if err != nil {
+		t.Fatalf("read %s: %v", script, err)
+	}
+	text := string(data)
+	if strings.Contains(text, "go test -run 30m ./...") {
+		t.Fatalf("%s still uses invalid go test -run 30m form", script)
+	}
+	if strings.Contains(text, "llgo test -run 30m ./...") {
+		t.Fatalf("%s still uses invalid llgo test -run 30m form", script)
+	}
+	if !strings.Contains(text, "go test -timeout 30m ./...") {
+		t.Fatalf("%s missing go test -timeout 30m", script)
+	}
+	if !strings.Contains(text, "llgo test -timeout 30m ./...") {
+		t.Fatalf("%s missing llgo test -timeout 30m", script)
+	}
+}

dev/local_ci.sh

@@ -159,7 +159,7 @@ log_section "Go Build"
 (cd "$workdir" && go build ./...)
 
 log_section "Go Test"
-(cd "$workdir" && go test -run 30m ./...)
+(cd "$workdir" && go test -timeout 30m ./...)
 
 log_section "Install llgo"
 (cd "$workdir" && go install -tags=dev ./cmd/llgo)
@@ -171,7 +171,7 @@ fi
 export PATH="$gobin:$PATH"
 
 log_section "llgo test"
-(cd "$workdir" && llgo test -run 30m ./...)
+(cd "$workdir" && llgo test -timeout 30m ./...)
 
 log_section "Demo Tests"
 demo_jobs="${LLGO_DEMO_JOBS:-}"