Adapting missing constants analysis to new PHP 7 more strict rules

Author: moufmouf

composer.json

@@ -23,7 +23,7 @@
 		}
 	],
 	"require" : {
-		"php" : ">=5.3.9",
+		"php" : ">=5.4.6",
 		"mouf/mouf-installer" : "~2.0.1",
 		"mouf/mouf-validators-interface" : "~2.0",
 		"container-interop/container-interop" : "~1.0",

src/Mouf/Reflection/MoufReflectionParameter.php

@@ -207,6 +207,9 @@ public function toJson() {
     			// In some cases, the call to getDefaultValue can log NOTICES
     			// in particular if an undefined constant is used as default value.
     			ob_start();
+    			if ($this->isDefaultValueConstant() && !defined($this->getDefaultValueConstantName())) {
+    			    throw new \Exception('Constant "'.$this->getDefaultValueConstantName().'" does not exist.');
+                }
     			$result['default'] = $this->getDefaultValue();
     			$possibleError = ob_get_clean();
     			if ($possibleError) {