Generate more stubs for okhttp and fix tests.

Some generated stubs needed to be manually corrected.

Author: joefarebrother

java/ql/test/query-tests/security/CWE-295/AndroidMissingCertificatePinning/Test3/Test.java

@@ -7,7 +7,7 @@ void test1() throws Exception {
     CertificatePinner certificatePinner = new CertificatePinner.Builder()
          .add("good.example.com", "sha256/AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=")
          .build();
-     OkHttpClient client = OkHttpClient.Builder()
+     OkHttpClient client = new OkHttpClient.Builder()
          .certificatePinner(certificatePinner)
          .build();