hunk cherry-pick from 8a21987: fix InterceptorEnabled visibility.

Author: MorthimerMcMare

compiler-rt/lib/sanitizer_common/sanitizer_common.cpp

@@ -20,7 +20,8 @@
 #include "sanitizer_libc.h"
 #include "sanitizer_placement_new.h"
 
-extern "C" bool InterceptorEnabled = true;
+extern "C" __attribute__((visibility("default")))
+bool InterceptorEnabled = true;
 
 namespace __sanitizer {
 

compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors_memintrinsics.inc

@@ -31,7 +31,8 @@
 #include "interception/interception.h"
 #include "sanitizer_platform_interceptors.h"
 
-extern "C" bool InterceptorEnabled;
+extern "C" __attribute__((visibility("default")))
+bool InterceptorEnabled;
 
 // Platform-specific options.
 #if SANITIZER_APPLE