Switch to using_sanitizer for archiving llvm-symbolizer. Also, add libFuzzer and AFL explicitly in …

build/config/sanitizers/sanitizers.gni

Index: build/config/sanitizers/sanitizers.gni
diff --git a/build/config/sanitizers/sanitizers.gni b/build/config/sanitizers/sanitizers.gni
index 132512d2529c50cd90ba692f3265dd8a79fe22ca..a005dd4fdb9f7d8a0032b75d7b01c1c53cd6339e 100644
--- a/build/config/sanitizers/sanitizers.gni
+++ b/build/config/sanitizers/sanitizers.gni
@@ -149,9 +149,9 @@ if (use_afl && sanitizer_coverage_flags == "") {
   sanitizer_coverage_flags = "edge,indirect-calls,8bit-counters"
 }
 
-using_sanitizer =
-    is_asan || is_lsan || is_tsan || is_msan || is_ubsan || is_ubsan_null ||
-    is_ubsan_vptr || is_ubsan_security || use_sanitizer_coverage
+using_sanitizer = is_asan || is_lsan || is_tsan || is_msan || is_ubsan ||
+                  is_ubsan_null || is_ubsan_vptr || is_ubsan_security ||
+                  use_afl || use_libfuzzer || use_sanitizer_coverage

[Nico, 2016/09/02 18:25:00]

Why this change? afl and libfuzzer don't mean using a sanitizer, it seems
surprising to add this here (and your bots probably use fuzzer + asan, so this
isn't needed anyways?)

 
 assert(!using_sanitizer || is_clang,
        "Sanitizers (is_*san) require setting is_clang = true in 'gn args'")