[changed] tslint to Array<type> syntax

Summary: Google Style had required type[], but that is inconsistent with other collection types, like Set<type>.  Preferring consistency/simplicity/clarity over terseness.

Test Plan: lint passes

Reviewers: O3 Material JavaScript platform reviewers, #material_motion, O2 Material Motion, featherless

Reviewed By: #material_motion, O2 Material Motion, featherless

Tags: #material_motion

Differential Revision: http://codereview.cc/D2410

packages/demos-react/src/map-scroll-to-css/utils.ts

@@ -15,7 +15,7 @@
  */
 
 
-export function range({ start = 0, end = 1 }:{ start?: number, end?: number } = {}):number[] {
+export function range({ start = 0, end = 1 }: { start?: number, end?: number } = {}): Array<number> {
   const length = end - start;
   return Array(length + 1).fill().map((_, i) => start + i);
 }

tslint.json

@@ -1,6 +1,6 @@
 {
   "rules": {
-    "array-type": [true, "array-simple"],
+    "array-type": [true, "generic"],
     "class-name": true,
     "comment-format": [true, "check-space"],
     "curly": true,