Add test for destructured interface JSDoc comments

Co-authored-by: jakebailey <[email protected]>

Author: Copilot

internal/fourslash/tests/destructuredInterfaceJSDoc_test.go

@@ -0,0 +1,32 @@
+package fourslash_test
+
+import (
+	"testing"
+
+	"github.com/microsoft/typescript-go/internal/fourslash"
+	"github.com/microsoft/typescript-go/internal/testutil"
+)
+
+func TestDestructuredInterfaceJSDoc(t *testing.T) {
+	t.Parallel()
+	defer testutil.RecoverAndFail(t, "Panic on fourslash test")
+	const content = `
+interface FooBar {
+    /** foo comment */
+    foo: number;
+    /** bar comment */
+    bar: string;
+    /** baz comment */
+    baz: string;
+}
+
+declare const fubar: FooBar;
+
+const {/*1*/foo, /*2*/bar, /*3*/baz} = fubar;
+`
+	f, done := fourslash.NewFourslash(t, nil /*capabilities*/, content)
+	defer done()
+	f.VerifyQuickInfoAt(t, "1", "const foo: number", "foo comment")
+	f.VerifyQuickInfoAt(t, "2", "const bar: string", "bar comment")
+	f.VerifyQuickInfoAt(t, "3", "const baz: string", "baz comment")
+}