Add crashing example test

Author: harlanhaskins

Tests/Foundation/TestURLSession.swift

@@ -283,6 +283,18 @@ final class TestURLSession: LoopbackServerTest, @unchecked Sendable {
         await downloadTaskWithRequestAndHandler(with: session)
     }
 
+    func downloadTaskWithTruncatedHeaders() async {
+        let configuration = URLSessionConfiguration.default
+        let session = URLSession(configuration: configuration)
+
+        // url1 works
+        let url1 = URL(string: "https://github.com/IBM-Swift/CArchive/raw/master/module.modulemap")!
+        //url2 generates a Fatal error
+        let url2 = URL(string: "https://store-test.blobstore.apple.com/test2/think.txt?AWSAccessKeyId=MKIAQ46TEN6NTFP8PJAP&SignatureMethod=HmacSHA1&SignatureVersion=2&Expires=64092211200&Signature=jgHl7aTtiJhkvSaRC19YaH2T2qo%3D")!
+
+        let (data, response) = try await session.data(from: url2)
+    }
+
     func downloadTaskWithRequestAndHandler(with session: URLSession) async {
         let urlString = "http://127.0.0.1:\(TestURLSession.serverPort)/country.txt"
         let expect = expectation(description: "Download GET \(urlString): with a completion handler")