fa410f6 test: Suppress false positive leak in secure_allocator<RNGState> (MarcoFalke)
fa35c42 test: Log output even if fuzzer failed (MarcoFalke)

Pull request description:

  Also suppress a false positive detected leak

ACKs for commit fa410f:
  practicalswift:
    utACK fa410f6

Tree-SHA512: 224a72ae0dd9bbe7debda17cd626c01cfbd0e45d7df47a2b591ce8ea386951ad94f4c0677dd268079a4caac382c5acac03199146015a95c308a633e9e4f84c09

Summary:
Backport of core [[bitcoin/bitcoin#16236 | PR16236]].

The second commit:
bitcoin/bitcoin@fa410f6
is not needed because we already have the exception in our suppression
list.

Test Plan:
  ninja bitcoin-fuzzer
  ./test/fuzz/test_runner.py <path_to_corpus>

Reviewers: #bitcoin_abc, deadalnix

Reviewed By: #bitcoin_abc, deadalnix

Differential Revision: https://reviews.bitcoinabc.org/D8138

d059544 [Build] fuzz target, change LIBBITCOIN_ZEROCOIN link order. (furszy)
2396e6b [fuzz] Add ContextualCheckTransaction call to transaction target. (furszy)
f0887a0 Fuzzing documentation "PIVX-fication" (furszy)
9631f46 [doc] add sanitizers documentation in developer-notes.md (furszy)
70a0ace tests: Test serialisation as part of deserialisation fuzzing. Test round-trip equality where possible. Avoid code repetition. (practicalswift)
e1b92b6 ignore new fuzz targets gitignore (furszy)
d058d8c tests: Add deserialization fuzzing harnesses (furszy)
e1f666c tests: Remove TRANSACTION_DESERIALIZE (replaced by transaction fuzzer) (practicalswift)
b5f291c tests: Add fuzzing harness for CheckTransaction(...), IsStandardTx(...) and other CTransaction related functions (furszy)
3205871 fuzz: Remove option --export_coverage from test_runner (MarcoFalke)
52693ee fuzz: Add option to merge input dir to test runner (MarcoFalke)
2b4f8aa doc: Remove --disable-ccache from docs (MarcoFalke)
b54b1d6 tests: Improve test runner output in case of target errors (practicalswift)
cd6134f test: Log output even if fuzzer failed (MarcoFalke)
48cd0c8 doc: Improve fuzzing docs for macOS users (Fabian Jahr)
d642b67 [Build] Do not disable wallet when fuzz is enabled. (furszy)
c3447b5 Update doc and CI config (qmma)
1266d3e Disable other targets when enable-fuzz is set (qmma)
f28ac9a build: Allow to configure --with-sanitizers=fuzzer (MarcoFalke)
425742c fuzz: test_runner: Better error message when built with afl (MarcoFalke)
541f442 qa: Add test/fuzz/test_runner.py (MarcoFalke)
89fe5b2 Add missing LIBBITCOIN_ZMQ to test target (furszy)
58dbe79 add fuzzing binaries to gitignore. (furszy)
393a126 fuzz: Move deserialize tests to test/fuzz/deserialize.cpp (MarcoFalke)
a568df5 test: Build fuzz targets into separate executables (furszy)
d5dddde [test] fuzz: make test_one_input return void (MarcoFalke)
2e4ec58 [fuzzing] initialize chain params by default. (furszy)
08d8ebe [tests] Add libFuzzer support. (practicalswift)
84f72da [test] Speed up fuzzing by ~200x when using afl-fuzz (practicalswift)
faf2be6 Init ECC context for test_bitcoin_fuzzy. (Gregory Maxwell)
11150df Make fuzzer actually test CTxOutCompressor (Pieter Wuille)
d6f6a85 doc: Add bare-bones documentation for fuzzing (Wladimir J. van der Laan)
5c3b550 Simple fuzzing framework (pstratem)

Pull request description:

  As the title says, adding fuzzing framework support so we can start getting serious on this area as well.

  Adapted the following PRs:

  * bitcoin#9172.
  * bitcoin#9354.
  * bitcoin#9691.
  * bitcoin#10415.
  * bitcoin#10440.
  * bitcoin#15043.
  * bitcoin#15047.
  * bitcoin#15295.
  * bitcoin#15399 (fabcfa5 only).
  * bitcoin#16338.
  * bitcoin#17051.
  * bitcoin#17076.
  * bitcoin#17225.
  * bitcoin#17942.
  * bitcoin#16236 (only fa35c42).
  * bitcoin#18166 (only f2472f6).
  * bitcoin#18300.
  * And.. probably will go further and continue adapting more PRs..

ACKs for top commit:
  random-zebra:
    utACK d059544 and merging...

Tree-SHA512: c0b05bca47bf99bafd8abf1453c5636fe05df75f16d0e9c750368ea2aed8142f0b28d28af1d23468b8829188412a80fd3b7bdbbda294b940d78aec80c1c7d03a