Switch to fqn symfony branch

Author: iluuu1994

benchmark/benchmark.php

@@ -62,7 +62,7 @@ function runBench(bool $jit): array {
 
 function runSymfonyDemo(bool $jit): array {
     $dir = __DIR__ . '/repos/symfony-demo-2.2.3';
-    cloneRepo($dir, 'https://github.com/php/benchmarking-symfony-demo-2.2.3.git');
+    cloneRepo($dir, 'https://github.com/php/benchmarking-symfony-demo-2.2.3.git', branch: 'fqn-functions');
     runPhpCommand([$dir . '/bin/console', 'cache:clear']);
     runPhpCommand([$dir . '/bin/console', 'cache:warmup']);
     return runValgrindPhpCgiCommand('symfony-demo', [$dir . '/public/index.php'], cwd: $dir, jit: $jit, warmup: 50, repeat: 50);

benchmark/shared.php

@@ -59,7 +59,7 @@ function runCommand(array $args, ?string $cwd = null): ProcessResult {
     return $result;
 }
 
-function cloneRepo(string $path, string $url) {
+function cloneRepo(string $path, string $url, ?string $branch = null) {
     if (is_dir($path)) {
         return;
     }
@@ -68,5 +68,6 @@ function cloneRepo(string $path, string $url) {
     if (!is_dir($dir)) {
         mkdir($dir, 0755, true);
     }
-    runCommand(['git', 'clone', '-q', '--end-of-options', $url, $repo], dirname($path));
+    $branchFlags = $branch ? ['-b', $branch] : [];
+    runCommand(['git', 'clone', '-q', ...$branchFlags, '--end-of-options', $url, $repo], dirname($path));
 }