Move UBSan warnings from a blacklist to the source

webrtc/common_audio/signal_processing/signal_processing_unittest.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 23 matching lines @@
     int a = -3;
     int b = WEBRTC_SPL_WORD32_MAX;
 
     EXPECT_EQ(10, WEBRTC_SPL_MIN(A, B));
     EXPECT_EQ(21, WEBRTC_SPL_MAX(A, B));
 
     EXPECT_EQ(3, WEBRTC_SPL_ABS_W16(a));
     EXPECT_EQ(3, WEBRTC_SPL_ABS_W32(a));
 
     EXPECT_EQ(-63, WEBRTC_SPL_MUL(a, B));
-    EXPECT_EQ(-2147483645, WEBRTC_SPL_MUL(a, b));
     EXPECT_EQ(2147483651u, WEBRTC_SPL_UMUL(a, b));
     b = WEBRTC_SPL_WORD16_MAX >> 1;
     EXPECT_EQ(4294918147u, WEBRTC_SPL_UMUL_32_16(a, b));
     EXPECT_EQ(-49149, WEBRTC_SPL_MUL_16_U16(a, b));
 
     a = b;
     b = -3;
 
     EXPECT_EQ(-1, WEBRTC_SPL_MUL_16_32_RSFT16(a, b));
     EXPECT_EQ(-1, WEBRTC_SPL_MUL_16_32_RSFT15(a, b));
@@ skipping 545 matching lines @@
   // 12-15 are skipped to account for the filter lag.
   for (size_t i = 0; i < 12; ++i) {
     EXPECT_EQ(kRefValue32kHz1, out_vector[i]);
     EXPECT_EQ(kRefValue16kHz1, out_vector_w16[i]);
   }
   for (size_t i = 16; i < 2 * kBlockSize; ++i) {
     EXPECT_EQ(kRefValue32kHz2, out_vector[i]);
     EXPECT_EQ(kRefValue16kHz2, out_vector_w16[i]);
   }
 }