Fix typo

Author: lpsinger

deno/corejs/index.js

@@ -6954,7 +6954,7 @@ var AsyncIteratorProxy = createAsyncIteratorProxy(function (Promise) {
   });
 });
 
-// `AsyncIterator.prototype.flaMap` method
+// `AsyncIterator.prototype.flatMap` method
 // https://github.com/tc39/proposal-async-iterator-helpers
 $({ target: 'AsyncIterator', proto: true, real: true }, {
   flatMap: function flatMap(mapper) {

packages/core-js/modules/esnext.async-iterator.flat-map.js

@@ -73,7 +73,7 @@ var AsyncIteratorProxy = createAsyncIteratorProxy(function (Promise) {
   });
 });
 
-// `AsyncIterator.prototype.flaMap` method
+// `AsyncIterator.prototype.flatMap` method
 // https://github.com/tc39/proposal-async-iterator-helpers
 $({ target: 'AsyncIterator', proto: true, real: true }, {
   flatMap: function flatMap(mapper) {