composer: bump to PHP 7

Author: TomasVotruba

composer.json

@@ -12,20 +12,20 @@
         "php": "^7.0",
         "phpdocumentor/reflection-common": "^1.0"
     },
+    "require-dev": {
+        "phpunit/phpunit": "^6.4",
+        "mockery/mockery": "^1.0"
+    },
     "autoload": {
         "psr-4": {
-          "phpDocumentor\\Reflection\\": "src"
+            "phpDocumentor\\Reflection\\": "src"
         }
     },
     "autoload-dev": {
         "psr-4": {
-          "phpDocumentor\\Reflection\\": "tests/unit"
+            "phpDocumentor\\Reflection\\": "tests"
         }
     },
-    "require-dev": {
-        "phpunit/phpunit": "^6.4",
-        "mockery/mockery": "^1.0"
-    },
     "extra": {
         "branch-alias": {
             "dev-master": "1.0.x-dev"