fix: symbols not stringified properly

src/main/java/me/topchetoeu/jscript/runtime/values/primitives/SymbolValue.java

@@ -1,6 +1,9 @@
 package me.topchetoeu.jscript.runtime.values.primitives;
 
+import java.util.Arrays;
 import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
 
 import me.topchetoeu.jscript.common.environment.Environment;
 import me.topchetoeu.jscript.runtime.exceptions.EngineException;
@@ -34,6 +37,11 @@ public final class SymbolValue extends PrimitiveValue {
         else return "Symbol(" + value + ")";
     }
 
+	@Override
+	public List<String> toReadableLines(Environment env, HashSet<ObjectValue> passed) {
+		return Arrays.asList(toString());
+	}
+
     public SymbolValue(String value) {
         this.value = value;
     }