chore: add types for tslint-rule-documentation

lib/module_types/tslint-rule-documentation.d.ts

@@ -0,0 +1,10 @@
+declare module "tslint-rule-documentation" {
+  export interface IRuleResult {
+    found: boolean; // true if the rule is a TSLint core rule, or a known plugin rule, false otherwise
+    uri: string; // If found is true, uri of the documentation of the rule. If found is false, uri of the contribution guidelines
+  }
+  /** Find the url for the documentation of a TSLint rule
+  * @param {string} ruleID  The ID of a TSLint rule such as `no-var-keyword` or `__example/foo`
+  */
+  export function getRuleUri(ruleID: string): IRuleResult
+}

lib/worker.ts

@@ -206,7 +206,7 @@ async function lint(content: string, filePath: string, options: Tslint.ILinterOp
     return [];
   }
 
-  return lintResult["failures"].map((failure: Tslint.RuleFailure) => {
+  return lintResult.failures.map((failure: Tslint.RuleFailure) => {
     const ruleUri = getRuleUri(failure.getRuleName());
     const startPosition = failure.getStartPosition().getLineAndCharacter();
     const endPosition = failure.getEndPosition().getLineAndCharacter();