refactor(core): change module semantics

This contains major changes to the compiler, bootstrap of the platforms
and test environment initialization.

Main part of #10043
Closes #10164

BREAKING CHANGE:
- Semantics and name of `@AppModule` (now `@NgModule`) changed quite a bit.
  This is actually not breaking as `@AppModules` were not part of rc.4.
  We will have detailed docs on `@NgModule` separately.
- `coreLoadAndBootstrap` and `coreBootstrap` can't be used any more (without migration support).
  Use `bootstrapModule` / `bootstrapModuleFactory` instead.
- All Components listed in routes have to be part of the `declarations` of an NgModule.
  Either directly on the bootstrap module / lazy loaded module, or in an NgModule imported by them.

modules/@angular/facade/src/lang.ts

@@ -155,12 +155,12 @@ export function stringify(token: any): string {
     return '' + token;
   }
 
-  if (token.name) {
-    return token.name;
-  }
   if (token.overriddenName) {
     return token.overriddenName;
   }
+  if (token.name) {
+    return token.name;
+  }
 
   var res = token.toString();
   var newLineIndex = res.indexOf('\n');