Added quoted string \q test cases for parse

Author: Napalys

javascript/extractor/src/com/semmle/js/parser/RegExpParser.java

@@ -67,6 +67,7 @@ public List<Error> getErrors() {
   private List<Error> errors;
   private List<BackReference> backrefs;
   private int maxbackref;
+  private boolean vFlag = false;
 
   /** Parse the given string as a regular expression. */
   public Result parse(String src) {
@@ -82,6 +83,11 @@ public Result parse(String src) {
     return new Result(root, errors);
   }
 
+  public Result parse(String src, boolean vFlag) {
+    this.vFlag = vFlag;
+    return parse(src);
+  }
+
   private static String fromCodePoint(int codepoint) {
     if (Character.isValidCodePoint(codepoint)) return new String(Character.toChars(codepoint));
     // replacement character

javascript/extractor/tests/es2024/input/regex_quoted_string.js

@@ -0,0 +1,5 @@
+/[\q{abc}]/v;
+/[\q{abc|cbd|dcb}]/v;
+/[\q{\}}]/v;
+/[\q{\{}]/v;
+/[\q{cc|\}a|cc}]/v;

javascript/extractor/tests/es2024/options.json

@@ -0,0 +1,3 @@
+{
+    "experimental": true
+}