Fix dependency version, test on PHP 7.2

.travis.yml

@@ -5,6 +5,7 @@ language: php
 php:
   - 7
   - 7.1
+  - 7.2
   - hhvm
   - nightly
 
@@ -26,5 +27,6 @@ after_script:
 
 matrix:
   allow_failures:
+    - php: 7.2
     - php: nightly
-    - php: hhvm
+    - php: hhvm

composer.json

@@ -25,7 +25,7 @@
 	},
 	"require-dev": {
 		"consolidation/robo": "^1.0.0",
-		"infection/infection": "1.0.0-alpha2",
+		"infection/infection": "^0.7.0",
 		"monolog/monolog": "^1.21",
 		"pdepend/pdepend": "^2.5",
 		"phploc/phploc": "^4.0",
@@ -44,6 +44,7 @@
 	},
 	"scripts": {
 		"coverage": "phpdbg -qrr -- vendor/bin/phpunit -c build",
+		"phpstan": "phpstan analyse src tests",
 		"test": "vendor/bin/phpunit"
 	},
 	"scripts-descriptions": {