Ensure that a truffle context is entered when a new symbol is being created.

Author: iamstolis

graal-nodejs/mx.graal-nodejs/com.oracle.truffle.trufflenode/src/com/oracle/truffle/trufflenode/GraalJSAccess.java

@@ -1584,10 +1584,18 @@ public void dateTimeConfigurationChangeNotification(int timeZoneDetection, Strin
     }
 
     public Object symbolNew(Object name) {
-        if (isAuxEngineCacheMode()) {
-            return getContextEngineCacheData(mainJSContext).createOrUseCachedSingleton((TruffleString) name);
+        Object prev = mainJSRealm.getTruffleContext().enter(null);
+        try {
+            Symbol symbol;
+            if (isAuxEngineCacheMode()) {
+                symbol = getContextEngineCacheData(mainJSContext).createOrUseCachedSingleton((TruffleString) name);
+            } else {
+                symbol = Symbol.create((TruffleString) name);
+            }
+            return symbol;
+        } finally {
+            mainJSRealm.getTruffleContext().leave(null, prev);
         }
-        return Symbol.create((TruffleString) name);
     }
 
     public Object symbolName(Object symbol) {