Typo fix: Enable a bunch of tests that were accidentally disabled

webrtc/modules/audio_coding/acm2/audio_coding_module_unittest_oldapi.cc

 /*
  *  Copyright (c) 2014 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 895 matching lines @@
     test.Run();
 
     std::string checksum_string = checksum.Finish();
     EXPECT_EQ(checksum_ref, checksum_string);
 
     // Delete the output file.
     remove(output_file_name.c_str());
   }
 };
 
-#if (defined(WEBRTC_CODEC_ISAC) || defined(WEBRTC_CODEC_ISAC)) && \
+#if (defined(WEBRTC_CODEC_ISAC) || defined(WEBRTC_CODEC_ISACFX)) && \
     defined(WEBRTC_CODEC_ILBC) && defined(WEBRTC_CODEC_G722)
 #define IF_ALL_CODECS(x) x
 #else
 #define IF_ALL_CODECS(x) DISABLED_##x
 #endif
 
 // Fails Android ARM64. https://code.google.com/p/webrtc/issues/detail?id=4199
 #if defined(WEBRTC_ANDROID) && defined(WEBRTC_ARCH_ARM64)
 #define MAYBE_8kHzOutput DISABLED_8kHzOutput
 #else
@@ skipping 867 matching lines @@
   Run(16000, 8000, 1000);
 }
 
 TEST_F(AcmSwitchingOutputFrequencyOldApi, Toggle8KhzTo16Khz) {
   Run(8000, 16000, 1000);
 }
 
 #endif
 
 }  // namespace webrtc