build(ngc): run integration test hermetically

This ensures we run in a clean directory, using our real distribution. It finds bugs like @internal
APIs needed to type-check in the offline compiler, as well as problems in package.json.

Also move tsc-wrapped under tools/@angular

modules/@angular/compiler_cli/integrationtest/test/basic_spec.ts

@@ -1,3 +1,11 @@
+// Only needed to satisfy the check in core/src/util/decorators.ts
+// TODO(alexeagle): maybe remove that check?
+require('reflect-metadata');
+
+require('@angular/platform-server/src/parse5_adapter.js').Parse5DomAdapter.makeCurrent();
+require('zone.js/dist/zone-node.js');
+require('zone.js/dist/long-stack-trace-zone.js');
+
 import * as fs from 'fs';
 import * as path from 'path';
 import {BasicNgFactory} from '../src/basic.ngfactory';
@@ -6,7 +14,7 @@ import {ReflectiveInjector, DebugElement, getDebugNode} from '@angular/core';
 import {browserPlatform, BROWSER_APP_PROVIDERS} from '@angular/platform-browser';
 
 describe("template codegen output", () => {
-  const outDir = path.join('dist', 'all', '@angular', 'compiler_cli', 'integrationtest', 'src');
+  const outDir = 'src';
 
   it("should lower Decorators without reflect-metadata", () => {
     const jsOutput = path.join(outDir, 'basic.js');
@@ -62,4 +70,4 @@ describe("template codegen output", () => {
     expect(debugElement.children[2].attributes['value']).toBe('1');
     expect(debugElement.children[3].attributes['value']).toBe('2');
   });
-});
+});

modules/@angular/compiler_cli/integrationtest/tsconfig.json

@@ -2,8 +2,7 @@
     "angularCompilerOptions": {
       // For TypeScript 1.8, we have to lay out generated files
       // in the same source directory with your code.
-      "genDir": ".",
-      "legacyPackageLayout": false
+      "genDir": "."
     },
 
     "compilerOptions": {
@@ -11,13 +10,9 @@
         "experimentalDecorators": true,
         "noImplicitAny": true,
         "moduleResolution": "node",
-        "outDir": "../../../../dist/all/@angular/compiler_cli/integrationtest",
         "rootDir": "",
         "declaration": true,
         "lib": ["es6", "dom"],
-        "baseUrl": ".",
-        "paths": {
-          "@angular/*": ["../../../../dist/all/@angular/*"]
-        }
+        "baseUrl": "."
     }
 }

modules/@angular/compiler_cli/integrationtest/typings.d.ts

@@ -1,2 +0,0 @@
-/// <reference path="../../../../node_modules/@types/node/index.d.ts" />
-/// <reference path="../../../../node_modules/@types/jasmine/index.d.ts" />