Resolve class based transform deprecation

ember-source 3.27+: Using class based template compilation plugins is deprecated, please update to the functional style

transform-test-selector-params-to-hash-pairs.js

@@ -4,46 +4,43 @@
 
 let TEST_SELECTOR_PREFIX = /data-test-.*/;
 
-function TransformTestSelectorParamsToHashPairs() {
-  this.syntax = null;
-}
-
 function isTestSelectorParam(param) {
   return param.type === 'PathExpression'
     && TEST_SELECTOR_PREFIX.test(param.original);
 }
 
-TransformTestSelectorParamsToHashPairs.prototype.transform = function(ast) {
-  let b = this.syntax.builders;
-  let walker = new this.syntax.Walker();
-
-  walker.visit(ast, function(node) {
-    if (node.type === 'MustacheStatement' || node.type === 'BlockStatement') {
-      if ('sexpr' in node) {
-        node = node.sexpr;
-      }
-
-      let testSelectorParams = [];
-      let otherParams = [];
-
-      node.params.forEach(function(param) {
-        if (isTestSelectorParam(param)) {
-          testSelectorParams.push(param);
-        } else {
-          otherParams.push(param);
-        }
-      });
-
-      node.params = otherParams;
-
-      testSelectorParams.forEach(function(param) {
-        let pair = b.pair(param.original, b.boolean(true));
-        node.hash.pairs.push(pair);
-      });
+module.exports = function(env) {
+  let b = env.syntax.builders;
+  let transform = (node) => {
+    if ('sexpr' in node) {
+      node = node.sexpr;
     }
-  });
 
-  return ast;
-};
+    let testSelectorParams = [];
+    let otherParams = [];
 
-module.exports = TransformTestSelectorParamsToHashPairs;
+    node.params.forEach(function(param) {
+      if (isTestSelectorParam(param)) {
+        testSelectorParams.push(param);
+      } else {
+        otherParams.push(param);
+      }
+    });
+
+    node.params = otherParams;
+
+    testSelectorParams.forEach(function(param) {
+      let pair = b.pair(param.original, b.boolean(true));
+      node.hash.pairs.push(pair);
+    });
+  };
+
+  return {
+    name: 'TransformTestSelectorParamsToHashPairs',
+
+    visitor: {
+      MustacheStatement: transform,
+      BlockStatement: transform,
+    },
+  };
+};