Fix Firestore Browser tests (#2216)

Author: schmidt-sebastian

packages/firestore/src/util/array.ts

@@ -39,23 +39,6 @@ export function some<T>(array: T[], predicate: (t: T) => boolean): boolean {
   return false;
 }
 
-/**
- * Calls a fn for each element in an array that is an instance of a provided
- * class/function.
- */
-export function forEachType<A, B>(
-  array: A[],
-  type: Function,
-  fn: (value: B) => void,
-  thisArg?: {}
-): void {
-  array.forEach(value => {
-    if (value instanceof type) {
-      fn.call(thisArg, value);
-    }
-  });
-}
-
 /**
  * Calls predicate function for each item in the array until the predicate
  * returns true, at which point the index of that item is returned.  If the

packages/firestore/test/integration/bootstrap.ts

@@ -29,5 +29,5 @@ import '../../index';
 const testsContext = (require as any).context('.', true, /.test$/);
 const browserTests = testsContext
   .keys()
-  .filter(file => file.indexOf('/node/') < 0);
+  .filter((file: string) => file.indexOf('/node/') < 0);
 browserTests.forEach(testsContext);

packages/firestore/test/unit/bootstrap.ts

@@ -29,5 +29,5 @@ import '../../src/platform_browser/browser_init';
 const testsContext = (require as any).context('.', true, /.test$/);
 const browserTests = testsContext
   .keys()
-  .filter(file => file.indexOf('/node/') < 0);
+  .filter((file: string) => file.indexOf('/node/') < 0);
 browserTests.forEach(testsContext);