Change php7 errors to exception to maintain compatability with function declaration php-debugbar#264 (php-debugbar#279)

Author: jamiehd

composer.json

@@ -19,7 +19,8 @@
     "require": {
         "php": ">=5.3.0",
         "psr/log": "^1.0",
-        "symfony/var-dumper": "^2.6|^3.0"
+        "symfony/var-dumper": "^2.6|^3.0",
+        "symfony/debug": "^2.6|^3.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^4.0|^5.0"

src/DebugBar/DataCollector/ExceptionsCollector.php

@@ -10,7 +10,9 @@
 
 namespace DebugBar\DataCollector;
 
+use Error;
 use Exception;
+use Symfony\Component\Debug\Exception\FatalThrowableError;
 
 /**
  * Collects info about exceptions
@@ -29,6 +31,9 @@ public function addException(Exception $e)
     {
         $this->exceptions[] = $e;
         if ($this->chainExceptions && $previous = $e->getPrevious()) {
+            if ($previous instanceof Error) {
+                $previous = new FatalThrowableError($previous);
+            }
             $this->addException($previous);
         }
     }