Add t.title to TypeScript definitions (#1529)

Author: forivall

index.js.flow

@@ -81,6 +81,7 @@ type AssertContext = {
  */
 
 type TestContext = AssertContext & {
+	title: string;
 	plan(count: number): void;
 	skip: AssertContext;
 };

types/base.d.ts

@@ -88,6 +88,10 @@ export interface AssertContext {
 	ifError(error: any, message?: string): void;
 }
 export interface TestContext extends AssertContext {
+	/**
+	 * Test title.
+	 */
+	title: string;
 	/**
 	 * Plan how many assertion there are in the test.
 	 * The test will fail if the actual assertion count doesn't match planned assertions.