Added phpstan in travis build

.travis.yml

@@ -10,6 +10,7 @@ env:
   global:
     - COMPOSER_ARGS="--no-interaction"
     - COVERAGE_DEPS="php-coveralls/php-coveralls"
+    - STATIC_ANALYSIS_DEPS="phpstan/phpstan"
 
 matrix:
   include:
@@ -22,7 +23,7 @@ matrix:
         - CS_CHECK=true
         - BENCHMARKS=true
         - TEST_COVERAGE=true
-        - PHPSTAN_TEST=true
+        - STATIC_ANALYSIS=true
     - php: 7.1
       env:
         - DEPS=latest
@@ -44,13 +45,14 @@ install:
   - if [[ $DEPS == 'latest' ]]; then travis_retry composer update $COMPOSER_ARGS ; fi
   - if [[ $DEPS == 'lowest' ]]; then travis_retry composer update --prefer-lowest --prefer-stable $COMPOSER_ARGS ; fi
   - if [[ $TEST_COVERAGE == 'true' ]]; then travis_retry composer require --dev $COMPOSER_ARGS $COVERAGE_DEPS ; fi
+  - if [[ $STATIC_ANALYSIS == 'true' ]]; then travis_retry composer require --dev $COMPOSER_ARGS $STATIC_ANALYSIS_DEPS ; fi
   - stty cols 120 && composer show
 
 script:
   - if [[ $TEST_COVERAGE == 'true' ]]; then composer test-coverage ; else composer test ; fi
   - if [[ $BENCHMARKS == 'true' ]]; then vendor/bin/phpbench run --revs=2 --iterations=2 --report=aggregate ; fi
   - if [[ $CS_CHECK == 'true' ]]; then composer cs-check ; fi
-  - if [[ $PHPSTAN_TEST == 'true' ]]; then ./vendor/bin/phpstan analyse --no-progress . ; fi
+  - if [[ $STATIC_ANALYSIS == 'true' ]]; then ./vendor/bin/phpstan analyse --no-progress . ; fi
 
 after_script:
   - if [[ $TEST_COVERAGE == 'true' ]]; then vendor/bin/php-coveralls -v ; fi

composer.json

@@ -29,7 +29,6 @@
         "mikey179/vfsStream": "^1.6.4",
         "ocramius/proxy-manager": "^2.1.1",
         "phpbench/phpbench": "^0.13.0",
-        "phpstan/phpstan": "^0.10.3",
         "phpunit/phpunit": "^6.4.4",
         "zendframework/zend-coding-standard": "~1.0.0",
         "zendframework/zend-container-config-test": "^0.2.1"