refactor(compiler): move static_reflector into @angular/compiler and rename files

- `src/runtime_compiler.ts` -> `src/jit/compiler.ts`
- `src/compiler.ts` -> `src/jit/compiler_factory.ts`
- `src/offline_compiler` -> `src/aot/compiler.ts`

Part of #12867

modules/@angular/compiler-cli/index.ts

@@ -6,9 +6,9 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
+export {StaticReflector, StaticReflectorHost, StaticSymbol} from '@angular/compiler';
 export {CodeGenerator} from './src/codegen';
 export {Extractor} from './src/extractor';
 export {NodeReflectorHostContext, ReflectorHost, ReflectorHostContext} from './src/reflector_host';
-export {StaticReflector, StaticReflectorHost, StaticSymbol} from './src/static_reflector';
 
 export * from '@angular/tsc-wrapped';