Merge #14764: travis: Run thread sanitizer on unit tests

fa7d36b8e7 test: Move UBSAN suppressions to test/sanitizer_suppressions/ubsan (MarcoFalke)
fa36d4e456 travis: --disable-hardening for xenial thread sanitizer (MarcoFalke)
89bf196c88 travis: Run thread sanitizer (MarcoFalke)

Pull request description:

  On unit tests only for now. Disabled for the gui unit tests and all functional tests.

Tree-SHA512: 56f7d3b44e7cb68c76a2dc5abd85658955b1c2188932e988667c5a1cbcdd6be995d37bb949d62c6eb08a4aebfc43ff0370b7da1719d4e4f322a3495c1941a5e0

test/sanitizer_suppressions/tsan

@@ -0,0 +1,24 @@
+# ThreadSanitizer suppressions
+# ============================
+
+# fChecked is theoretically racy, practically only in unit tests
+race:CheckBlock
+
+# WalletBatch (unidentified deadlock)
+deadlock:WalletBatch
+
+# Intentional deadlock in tests
+deadlock:TestPotentialDeadLockDetected
+
+# Wildcard for all gui tests, should be replaced with non-wildcard suppressions
+race:src/qt/test/*
+deadlock:src/qt/test/*
+
+# WIP: Unidentified suppressions to run the functional tests
+#race:zmqpublishnotifier.cpp
+#
+#deadlock:CreateWalletFromFile
+#deadlock:importprivkey
+#deadlock:walletdb.h
+#deadlock:walletdb.cpp
+#deadlock:wallet/db.cpp

test/sanitizer_suppressions/ubsan

@@ -0,0 +1,36 @@
+alignment:move.h
+alignment:prevector.h
+bool:wallet/wallet.cpp
+float-divide-by-zero:policy/fees.cpp
+float-divide-by-zero:validation.cpp
+float-divide-by-zero:wallet/wallet.cpp
+nonnull-attribute:support/cleanse.cpp
+unsigned-integer-overflow:arith_uint256.h
+unsigned-integer-overflow:basic_string.h
+unsigned-integer-overflow:bench/bench.h
+unsigned-integer-overflow:bitcoin-tx.cpp
+unsigned-integer-overflow:bloom.cpp
+unsigned-integer-overflow:chain.cpp
+unsigned-integer-overflow:chain.h
+unsigned-integer-overflow:coded_stream.h
+unsigned-integer-overflow:core_write.cpp
+unsigned-integer-overflow:crypto/chacha20.cpp
+unsigned-integer-overflow:crypto/ctaes/ctaes.c
+unsigned-integer-overflow:crypto/ripemd160.cpp
+unsigned-integer-overflow:crypto/sha1.cpp
+unsigned-integer-overflow:crypto/sha256.cpp
+unsigned-integer-overflow:crypto/sha512.cpp
+unsigned-integer-overflow:hash.cpp
+unsigned-integer-overflow:leveldb/db/log_reader.cc
+unsigned-integer-overflow:leveldb/util/bloom.cc
+unsigned-integer-overflow:leveldb/util/crc32c.h
+unsigned-integer-overflow:leveldb/util/hash.cc
+unsigned-integer-overflow:policy/fees.cpp
+unsigned-integer-overflow:prevector.h
+unsigned-integer-overflow:script/interpreter.cpp
+unsigned-integer-overflow:stl_bvector.h
+unsigned-integer-overflow:streams.h
+unsigned-integer-overflow:txmempool.cpp
+unsigned-integer-overflow:util/strencodings.cpp
+unsigned-integer-overflow:validation.cpp
+vptr:fs.cpp