Squashed 'external/toxcore/c-toxcore/' changes from 8f0d505f9a..6d634674a9

6d634674a9 cleanup: Remove old type-ordered event getters.
d1d48d1dfc feat: add ngc events
994ffecc6b refactor: Make event dispatch ordered by receive time.
812f931d5f fix: Make sure there's enough space for CONSUME1 in fuzzers.
50f1b30fa9 test: Add fuzz tests to the coverage run.
df76f5cf47 chore: Move from gcov to llvm source-based coverage.
072e3beb3f fix: issues with packet broadcast error reporting
6b6718e4d2 cleanup: Make group packet entry creation less error-prone
5b9c420ce1 refactor: packet broadcast functions now return errors
af4cb31028 refactor: Use `operator==` for equality tests of `Node_format`.
9592d590cf refactor(test): Slightly nicer C++ interface to tox Random.
c66e10fb7a refactor: Minor refactoring of get_close_nodes functions.
ebc9643862 fix: don't pass garbage data buffer to packet send functions
32b68cffca cleanup: Some more test cleanups, removing overly smart code.
0426624dcb refactor: Assign malloc return to a local variable first.
afc38f2458 test: Add more unit tests for `add_to_list`.
05ce5c1ab9 test: Add "infer" CI check to github, remove from circle.
REVERT: 8f0d505f9a feat: add ngc events
REVERT: 9b8216e70c refactor: Make event dispatch ordered by receive time.

git-subtree-dir: external/toxcore/c-toxcore
git-subtree-split: 6d634674a929edb0ab70689dcbcb195b3547be13

.circleci/config.yml

@@ -16,7 +16,6 @@ workflows:
       # Static analysis
       - clang-analyze
       - cpplint
-      - infer
       - static-analysis
 
 jobs:
@@ -69,6 +68,7 @@ jobs:
             cmake
             git
             libconfig-dev
+            libgmock-dev
             libgtest-dev
             libopus-dev
             libsodium-dev
@@ -102,27 +102,6 @@ jobs:
       - run: git submodule update --init --recursive
       - run: CC=clang .circleci/cmake-ubsan
 
-  infer:
-    working_directory: ~/work
-    docker:
-      - image: toxchat/infer
-
-    steps:
-      - run: *apt_install
-      - checkout
-      - run: git submodule update --init --recursive
-      - run: infer --no-progress-bar -- cc
-          auto_tests/auto_test_support.c
-          auto_tests/lossless_packet_test.c
-          testing/misc_tools.c
-          toxav/*.c
-          toxcore/*.c
-          toxcore/*/*.c
-          toxencryptsave/*.c
-          third_party/cmp/*.c
-          -lpthread
-          $(pkg-config --cflags --libs libsodium opus vpx)
-
   static-analysis:
     working_directory: ~/work
     docker: