Fix exception messages containing exception messages

Author: nicolas-grekas

Constraints/AbstractComparisonValidator.php

@@ -55,7 +55,7 @@ public function validate($value, Constraint $constraint)
             try {
                 $comparedValue = $this->getPropertyAccessor()->getValue($object, $path);
             } catch (NoSuchPropertyException $e) {
-                throw new ConstraintDefinitionException(sprintf('Invalid property path "%s" provided to "%s" constraint: '.$e->getMessage(), $path, \get_class($constraint)), 0, $e);
+                throw new ConstraintDefinitionException(sprintf('Invalid property path "%s" provided to "%s" constraint: ', $path, \get_class($constraint)).$e->getMessage(), 0, $e);
             }
         } else {
             $comparedValue = $constraint->value;

Mapping/Loader/YamlFileLoader.php

@@ -124,7 +124,7 @@ private function parseFile($path)
         try {
             $classes = $this->yamlParser->parseFile($path, Yaml::PARSE_CONSTANT);
         } catch (ParseException $e) {
-            throw new \InvalidArgumentException(sprintf('The file "%s" does not contain valid YAML', $path).': '.$e->getMessage(), 0, $e);
+            throw new \InvalidArgumentException(sprintf('The file "%s" does not contain valid YAML: ', $path).$e->getMessage(), 0, $e);
         } finally {
             restore_error_handler();
         }