bug symfony#18813 Catch \Throwable (fprochazka)

This PR was merged into the 2.7 branch.

Discussion
----------

Catch \Throwable

| Q             | A
| ------------- | ---
| Branch?       | 2.7, 2.8, 3.0
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | Yes
| Fixed tickets | n/a
| License       | MIT
| Doc PR        | n/a

Related symfony#18765, symfony#15949
Depends on symfony#18812

Commits
-------

103526b Catch \Throwable

Author: fabpot

src/Symfony/Component/Debug/DebugClassLoader.php

@@ -175,6 +175,10 @@ public function loadClass($class)
         } catch (\Exception $e) {
             ErrorHandler::unstackErrors();
 
+            throw $e;
+        } catch (\Throwable $e) {
+            ErrorHandler::unstackErrors();
+
             throw $e;
         }
 

src/Symfony/Component/Debug/ErrorHandler.php

@@ -447,6 +447,10 @@ public function handleError($type, $message, $file, $line, array $context, array
             } catch (\Exception $e) {
                 $this->isRecursive = false;
 
+                throw $e;
+            } catch (\Throwable $e) {
+                $this->isRecursive = false;
+
                 throw $e;
             }
         }
@@ -555,6 +559,8 @@ public static function handleFatalError(array $error = null)
             }
         } catch (\Exception $exception) {
             // Handled below
+        } catch (\Throwable $exception) {
+            // Handled below
         }
 
         if ($error && $error['type'] &= E_PARSE | E_ERROR | E_CORE_ERROR | E_COMPILE_ERROR) {

src/Symfony/Component/OptionsResolver/OptionsResolver.php

@@ -861,6 +861,9 @@ public function offsetGet($option)
             } catch (\Exception $e) {
                 unset($this->calling[$option]);
                 throw $e;
+            } catch (\Throwable $e) {
+                unset($this->calling[$option]);
+                throw $e;
             }
             unset($this->calling[$option]);
             // END
@@ -963,6 +966,9 @@ public function offsetGet($option)
             } catch (\Exception $e) {
                 unset($this->calling[$option]);
                 throw $e;
+            } catch (\Throwable $e) {
+                unset($this->calling[$option]);
+                throw $e;
             }
             unset($this->calling[$option]);
             // END

src/Symfony/Component/VarDumper/Dumper/AbstractDumper.php

@@ -141,6 +141,8 @@ public function dump(Data $data, $output = null)
             $this->dumpLine(-1);
         } catch (\Exception $exception) {
             // Re-thrown below
+        } catch (\Throwable $exception) {
+            // Re-thrown below
         }
         if ($output) {
             $this->setOutput($prevOutput);