Fix all ASAN issues in vectorscan

unit/internal/shuffle.cpp

@@ -36,6 +36,9 @@
 #include"util/supervector/supervector.hpp"
 #include "nfa/limex_shuffle.hpp"
 
+#ifdef setbit
+#undef setbit
+#endif
 
 namespace {
 

unit/internal/simd_utils.cpp

@@ -33,6 +33,10 @@
 #include "util/bytecode_ptr.h"
 #include "util/simd_utils.h"
 
+#ifdef setbit
+#undef setbit
+#endif
+
 using namespace std;
 using namespace ue2;