Support HHVM 3.29, migrate to HackTest

.hhconfig

@@ -5,9 +5,7 @@ disallow_non_arraykey_keys=true
 disallow_unsafe_comparisons=true
 decl_override_require_hint=true
 enable_experimental_tc_features=shape_field_check,sealed_classes
-
-# ignore HHAST as:
-# - otherwise, we get a circular dependency
-# - we don't use anything other than executables from it
-ignored_paths = [ "vendor/.+/tests/.+", "vendor/hhvm/hhast/.+" ]
-forward_compatibility_level=3.28
+forward_compatibility_level=3.29
+user_attributes=
+disable_primitive_refinement=true
+disallow_stringish_magic=true

.travis.yml

@@ -1,7 +1,5 @@
 language: php
 php:
  - hhvm
- - hhvm-3.27
- - hhvm-nightly
 script:
  - ./.travis.sh

composer.json

@@ -32,10 +32,9 @@
     ],
     "type": "library",
     "require-dev": {
-        "phpunit/phpunit": "^5.7",
-        "91carriage/phpunit-hhi": "^5.6",
         "hhvm/type-assert": "^3.1",
-        "facebook/fbexpect": "^0.4.0|^1.0.0",
+        "facebook/fbexpect": "^2.0.0",
+        "hhvm/hacktest": "^1.0",
         "hhvm/hhast": "^3.26.0"
     }
 }