Bug #52321 mtr test suite paths need to be updated

Use $suitedir instead of $basedir to find suites
Add 'testdir' to ConfigFactory

mysql-test/lib/My/ConfigFactory.pm

@@ -30,6 +30,13 @@ sub get_basedir {
   return $basedir;
 }
 
+sub get_testdir {
+  my ($self, $group)= @_;
+  my $testdir= $group->if_exist('testdir') ||
+    $self->{ARGS}->{testdir};
+  return $testdir;
+}
+
 
 sub fix_charset_dir {
   my ($self, $config, $group_name, $group)= @_;
@@ -142,8 +149,8 @@ sub fix_secure_file_priv {
 
 sub fix_std_data {
   my ($self, $config, $group_name, $group)= @_;
-  my $basedir= $self->get_basedir($group);
-  return "$basedir/mysql-test/std_data";
+  my $testdir= $self->get_testdir($group);
+  return "$testdir/std_data";
 }
 
 sub ssl_supported {

mysql-test/lib/mtr_cases.pm

@@ -266,11 +266,11 @@ sub collect_one_suite($)
     }
     else
     {
-      $suitedir= my_find_dir($::basedir,
-			     ["mysql-test/suite",
-			      "mysql-test",
+      $suitedir= my_find_dir($suitedir,
+			     ["suite",
+			      ".",
 			      # Look in storage engine specific suite dirs
-			      "storage/*/mysql-test-suites"
+			      "../storage/*/mysql-test-suites"
 			     ],
 			     [$suite]);
     }

mysql-test/mysql-test-run.pl

@@ -2742,6 +2742,7 @@ sub default_mysqld {
   my $config= My::ConfigFactory->new_config
     ( {
        basedir         => $basedir,
+       testdir         => $glob_mysql_test_dir,
        template_path   => "include/default_my.cnf",
        vardir          => $opt_vardir,
        tmpdir          => $opt_tmpdir,
@@ -3350,6 +3351,7 @@ sub run_testcase ($) {
       $config= My::ConfigFactory->new_config
 	( {
 	   basedir         => $basedir,
+	   testdir         => $glob_mysql_test_dir,
 	   template_path   => $tinfo->{template_path},
 	   extra_template_path => $tinfo->{extra_template_path},
 	   vardir          => $opt_vardir,