minor symfony#24960 SCA with Php Inspections (EA Extended) (kalessil)

This PR was squashed before being merged into the 3.4 branch (closes symfony#24960).

Discussion
----------

SCA with Php Inspections (EA Extended)

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | n/a
| License       | MIT
| Doc PR        | n/a

- Greedy regex characters set fixed
- Potential race-conditions fixed

Commits
-------

4d39a2d SCA with Php Inspections (EA Extended)

Author: nicolas-grekas

src/Symfony/Component/HttpKernel/Kernel.php

@@ -423,7 +423,7 @@ public function setClassCache(array $classes)
      */
     public function setAnnotatedClassCache(array $annotatedClasses)
     {
-        file_put_contents(($this->warmupDir ?: $this->getCacheDir()).'/annotations.map', sprintf('<?php return %s;', var_export($annotatedClasses, true)));
+        file_put_contents(($this->warmupDir ?: $this->getCacheDir()).'/annotations.map', sprintf('<?php return %s;', var_export($annotatedClasses, true)), LOCK_EX);
     }
 
     /**

src/Symfony/Component/Workflow/Definition.php

@@ -82,7 +82,7 @@ private function setInitialPlace($place)
 
     private function addPlace($place)
     {
-        if (!preg_match('{^[\w\d_-]+$}', $place)) {
+        if (!preg_match('{^[\w_-]+$}', $place)) {
             throw new InvalidArgumentException(sprintf('The place "%s" contains invalid characters.', $place));
         }
 

src/Symfony/Component/Workflow/DefinitionBuilder.php

@@ -77,7 +77,7 @@ public function setInitialPlace($place)
      */
     public function addPlace($place)
     {
-        if (!preg_match('{^[\w\d_-]+$}', $place)) {
+        if (!preg_match('{^[\w_-]+$}', $place)) {
             throw new InvalidArgumentException(sprintf('The place "%s" contains invalid characters.', $place));
         }
 

src/Symfony/Component/Workflow/Transition.php

@@ -30,7 +30,7 @@ class Transition
      */
     public function __construct($name, $froms, $tos)
     {
-        if (!preg_match('{^[\w\d_-]+$}', $name)) {
+        if (!preg_match('{^[\w_-]+$}', $name)) {
             throw new InvalidArgumentException(sprintf('The transition "%s" contains invalid characters.', $name));
         }