Roll src/third_party/afl/src/ 2.14b..2.30b (16 versions).

third_party/afl/src/docs/notes_for_asan.txt

Index: third_party/afl/src/docs/notes_for_asan.txt
diff --git a/third_party/afl/src/docs/notes_for_asan.txt b/third_party/afl/src/docs/notes_for_asan.txt
index 649bb29a314d698e463eac8420ae2a44e3bb36a2..0f5bdca95b443f2d34610a546ab1a1c081350b53 100644
--- a/third_party/afl/src/docs/notes_for_asan.txt
+++ b/third_party/afl/src/docs/notes_for_asan.txt
@@ -31,9 +31,16 @@ Note that ASAN is incompatible with -static, so be mindful of that.
 
 (You can also use AFL_USE_MSAN=1 to enable MSAN instead.)
 
+Note that both ASAN and MSAN are incompatible with -D_FORTIFY_SOURCE (enabled
+by default in some distros) and with AFL_HARDEN. Attempting to combine these
+settings can lead to false negatives in ASAN and false positives in MSAN. This
+is not AFL-specific.
+
 There is also the option of generating a corpus using a non-ASAN binary, and
 then feeding it to an ASAN-instrumented one to check for bugs. This is faster,
-and can give you somewhat comparable results.
+and can give you somewhat comparable results. You can also try using
+libdislocator (see libdislocator/README.dislocator in the parent directory) as a
+lightweight and hassle-free (but less thorough) alternative.
 
 2) Long version
 ---------------