add vulncheck failing testcase

Author: luxifer

test/linters_test.go

@@ -30,6 +30,7 @@ func TestTypecheck(t *testing.T) {
 func TestSourcesFromTestdataSubDir(t *testing.T) {
 	subDirs := []string{
 		"loggercheck",
+		"vulncheck",
 	}
 
 	for _, dir := range subDirs {

test/testdata/vulncheck/go.mod

@@ -0,0 +1,7 @@
+module vulncheck
+
+go 1.19
+
+require (
+	golang.org/x/text/languag v0.37.0
+)

test/testdata/vulncheck/vulncheck.go

@@ -0,0 +1,7 @@
+package vulncheck
+
+import "golang.org/x/text/language"
+
+func testvuln() {
+	_ = language.MustParseRegion("US")
+}