feat(ecmascript): String.prototype RegExp adjacent methods (#831)

* fix(ecmascript): IsRegExp is undefined test

* feat(ecmascript): String.prototype.replaceAll RegExp searchValue

* feat(ecmascript): String.prototype.search

* fix(ecmascript): Don't call well-known Symbol methods for RegExp on primitive values

* feat(ecmascript): String.prototype.matchAll

* feat(ecmascript): String.prototype.localeCompare base

Author: aapoalas

nova_vm/src/ecmascript/abstract_operations/testing_and_comparison.rs

@@ -179,7 +179,7 @@ pub(crate) fn is_reg_exp<'a>(
     )?;
 
     // 3. If matcher is not undefined, return ToBoolean(matcher).
-    if matcher.is_undefined() {
+    if !matcher.is_undefined() {
         return Ok(to_boolean(agent, matcher));
     }