Reland of Stop silently accepting unsupported flags in test binaries

webrtc/modules/audio_coding/codecs/isac/fix/test/kenny.cc

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 366 matching lines @@
     }
   }
 
   /* Get Bottleneck value                                                   */
   /* Gns files and bottleneck should not and can not be used simultaneously */
   bottleneck = atoi(argv[CodingMode+1]);
   if (bottleneck == 0 && gns == 0) {
     sscanf(argv[CodingMode+1], "%s", bottleneck_file);
     f_bn = fopen(bottleneck_file, "rb");
     if (f_bn  == NULL) {
-      printf("No value provided for BottleNeck and cannot read file %s\n",
-             bottleneck_file);
-      exit(0);  // TODO(oprypin): don't silence this error
-      // FAIL() << "Cannot read file " << bottleneck_file;
+      printf("No value provided for BottleNeck\n");
+      FAIL() << "Cannot read file " << bottleneck_file;
     } else {
       int aux_var;
       printf("reading bottleneck rates from file %s\n\n",bottleneck_file);
       if (fscanf(f_bn, "%d", &aux_var) == EOF) {
         /* Set pointer to beginning of file */
         fseek(f_bn, 0L, SEEK_SET);
         if (fscanf(f_bn, "%d", &aux_var) == EOF) {
           FAIL();
         }
       }
@@ skipping 437 matching lines @@
   WebRtcIsacfix_Free(ISAC_main_inst);
 }
 
 int main(int argc, char* argv[]) {
   ::testing::InitGoogleTest(&argc, argv);
   global_argc = argc;
   global_argv = argv;
 
   return RUN_ALL_TESTS();
 }