Add espree parser (#9000)

Co-authored-by: Chris Brody <chris.brody+brodybits@gmail.com>

src/main/core-options.js

@@ -129,6 +129,7 @@ const options = {
       { value: "babel-flow", since: "1.16.0", description: "Flow" },
       { value: "babel-ts", since: "2.0.0", description: "TypeScript" },
       { value: "typescript", since: "1.4.0", description: "TypeScript" },
+      { value: "espree", since: "2.2.0", description: "JavaScript" },
       { value: "css", since: "1.7.1", description: "CSS" },
       { value: "less", since: "1.7.1", description: "Less" },
       { value: "scss", since: "1.7.1", description: "SCSS" },

src/main/range-util.js

@@ -119,6 +119,7 @@ function isSourceElement(opts, node) {
     case "babel-flow":
     case "babel-ts":
     case "typescript":
+    case "espree":
       return isJsSourceElement(node.type);
     case "json":
       return jsonSourceElements.has(node.type);