Fixes Void element bug (#23)

* Add test for void element transform

* upgrading did not fix this bug

* update recast

Author: NullVoxPopuli

package.json

@@ -33,7 +33,7 @@
   "dependencies": {
     "codemod-cli": "^1.1.0",
     "ember-codemods-telemetry-helpers": "^0.4.0",
-    "ember-template-recast": "^3.1.1",
+    "ember-template-recast": "^3.1.3",
     "fs-extra": "^8.1.0",
     "git-repo-info": "^2.1.0",
     "minimatch": "^3.0.4",

transforms/no-implicit-this/__testfixtures__/-mock-telemetry.json

@@ -46,6 +46,10 @@
     "computedProperties": ["foo", "property"],
     "getters": ["someGetter"]
   },
+  "void-elements.input": {
+    "type": "Component",
+    "computedProperties": ["previewImageUrl"]
+  },
   "my-helper": { "type": "Helper" },
   "a-helper": { "type": "Helper" },
   "link-to": { "type": "Helper" },

transforms/no-implicit-this/__testfixtures__/void-elements.input.hbs

@@ -0,0 +1,11 @@
+<img
+ id="Preview"
+ src="{{previewImageUrl}}"
+ class="image"
+>
+
+<img
+ id="Preview"
+ src="{{previewImageUrl}}"
+ class="image"
+/>

transforms/no-implicit-this/__testfixtures__/void-elements.output.hbs

@@ -0,0 +1,11 @@
+<img
+ id="Preview"
+ src="{{this.previewImageUrl}}"
+ class="image"
+>
+
+<img
+ id="Preview"
+ src="{{this.previewImageUrl}}"
+ class="image"
+/>