Add fourslash test for code lens references including imports

Co-authored-by: jakebailey <5341706+jakebailey@users.noreply.github.com>

Author: Copilot

internal/fourslash/tests/codeLensReferencesIncludeImports_test.go

@@ -0,0 +1,30 @@
+package fourslash_test
+
+import (
+	"testing"
+
+	"github.com/microsoft/typescript-go/internal/fourslash"
+	"github.com/microsoft/typescript-go/internal/ls/lsutil"
+	"github.com/microsoft/typescript-go/internal/testutil"
+)
+
+func TestCodeLensReferencesIncludeImports(t *testing.T) {
+	t.Parallel()
+	defer testutil.RecoverAndFail(t, "Panic on fourslash test")
+
+	const content = `
+// @Filename: /abc.ts
+export function abc() { }
+
+// @Filename: /other.ts
+import { abc } from "./abc";
+`
+	f, done := fourslash.NewFourslash(t, nil /*capabilities*/, content)
+	defer done()
+	f.VerifyBaselineCodeLens(t, &lsutil.UserPreferences{
+		CodeLens: lsutil.CodeLensUserPreferences{
+			ReferencesCodeLensEnabled:            true,
+			ReferencesCodeLensShowOnAllFunctions: true,
+		},
+	})
+}

testdata/baselines/reference/fourslash/codeLenses/codeLensReferencesIncludeImports.baseline.jsonc

@@ -0,0 +1,4 @@
+// === Code Lenses ===
+// === /abc.ts ===
+// export function /*CODELENS: 0 references*/abc() { }
+//