Dangling reference in ClassVerifier::verify_class

SonarCloud reports:

Address of stack memory associated with local variable 'method_signatures_table' is still referred to by the stack variable 'split_verifier' upon returning to the caller. This will be a dangling reference

See:

```
void ClassVerifier::verify_class(TRAPS) {
  ...
 
  // Create hash table containing method signatures.
  method_signatures_table_type method_signatures_table; // <--- stack-alloc
  set_method_signatures_table(&method_signatures_table); // <--- pointer assignment

...
  for (int index = 0; index < num_methods; index++) {
    // Check for recursive re-verification before each method.
    if (was_recursively_verified()) return; // <--- early return