Merge pull request #10538 from Microsoft/find-declarations-of-js-module-export

Fix crash when checking module exports for export=

tests/cases/compiler/errorForConflictingExportEqualsValue.ts

@@ -0,0 +1,2 @@
+export var x;
+export = {};

tests/cases/compiler/maxNodeModuleJsDepthDefaultsToZero.ts

@@ -0,0 +1,36 @@
+// @module: commonjs
+// @moduleResolution: node
+// @allowJs: true
+// @traceResolution: true
+// @noEmit: true
+
+// @filename: /tsconfig.json
+{
+    "compileOnSave": true,
+    "compilerOptions": {
+        "module": "commonjs",
+        "moduleResolution": "node",
+        "outDir": "bin"
+    },
+    "exclude": [ "node_modules" ]
+}
+// @filename: /node_modules/shortid/node_modules/z/index.js
+// z will not be found because maxNodeModulesJsDepth: 0
+module.exports = { z: 'no' };
+
+// @filename: /node_modules/shortid/index.js
+var z = require('z');
+var y = { y: 'foo' };
+module.exports = y;
+
+// @filename: /typings/index.d.ts
+declare module "shortid" {
+    export var x: number;
+}
+
+// @filename: /index.ts
+/// <reference path="/typings/index.d.ts" />
+import * as foo from "shortid";
+foo.x // found in index.d.ts
+foo.y // ignored from shortid/index.js
+

tests/cases/projects/NodeModulesSearch/importHigher/tsconfig.json

@@ -2,6 +2,7 @@
   "compilerOptions": { 
     "allowJs": true,
     "declaration": false,
-    "moduleResolution": "node"
+    "moduleResolution": "node",
+    "maxNodeModuleJsDepth": 2
   }
 }