[MINOR] Environment of QIRContext is now public

src/qir/runtime/QIRContext.java

@@ -4,7 +4,7 @@ import com.oracle.truffle.api.ExecutionContext;
 import com.oracle.truffle.api.TruffleLanguage;
 
 public final class QIRContext extends ExecutionContext {
-    private final TruffleLanguage.Env env;
+    public final TruffleLanguage.Env env;
 
     public QIRContext(final TruffleLanguage.Env env) {
         this.env = env;