Bug 1547203 - Don't expose CTypes with --fuzzing-safe in JS shell. r=jandem

Differential Revision: https://phabricator.services.mozilla.com/D28961

--HG--
extra : moz-landing-system : lando

js/src/shell/js.cpp

@@ -9915,7 +9915,7 @@ static JSObject* NewGlobalObject(JSContext* cx, JS::RealmOptions& options,
                "having its [[Prototype]] be immutable");
 
 #ifdef JS_HAS_CTYPES
-    if (!JS_InitCTypesClass(cx, glob)) {
+    if (!fuzzingSafe && !JS_InitCTypesClass(cx, glob)) {
       return nullptr;
     }
 #endif