bug symfony#20519 [Debug] Remove GLOBALS from exception context to avoid endless recursion (Seldaek)

This PR was merged into the 2.7 branch.

Discussion
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[Debug] Remove GLOBALS from exception context to avoid endless recursion

| Q             | A
| ------------- | ---
| Branch?       | 2.7
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| License       | MIT

This fixes a endless recursion as seen in felixfbecker/php-language-server#137 - it only happens if you trigger an error in the global context so it's kinda hard to write a test for, but hopefully the fix can be accepted.

Commits
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1bb95ac [Debug] Remove GLOBALS from exception context to avoid endless recursion

Author: nicolas-grekas

src/Symfony/Component/Debug/ErrorHandler.php

@@ -373,7 +373,7 @@ public function handleError($type, $message, $file, $line, array $context, array
             return $type && $log;
         }
 
-        if (PHP_VERSION_ID < 50400 && isset($context['GLOBALS']) && ($this->scopedErrors & $type)) {
+        if (isset($context['GLOBALS']) && ($this->scopedErrors & $type)) {
             $e = $context;                  // Whatever the signature of the method,
             unset($e['GLOBALS'], $context); // $context is always a reference in 5.3
             $context = $e;