chore: Make field declarations explicit

This used to be valid code:

```
class Foo {
  constructor() {
    this.bar = ‘string’;
  }
}
```

This will now fail since ‘bar’ is not explicitly
defined as a field. We now have to write:

```
class Foo {
  bar:string; // << REQUIRED
  constructor() {
    this.bar = ‘string’;
  }
}
```

modules/core/src/annotations/annotations.js

@@ -0,0 +1,115 @@
+import {ABSTRACT, CONST, normalizeBlank} from 'facade/lang';
+import {List} from 'facade/collection';
+import {TemplateConfig} from './template_config';
+
+
+@ABSTRACT()
+export class Directive {
+  selector:any; //string;
+  bind:any;
+  lightDomServices:any; //List;
+  implementsTypes:any; //List;
+  @CONST()
+  constructor({
+      selector,
+      bind,
+      lightDomServices,
+      implementsTypes
+    }:{
+      selector:string,
+      bind:any,
+      lightDomServices:List,
+      implementsTypes:List
+    }={})
+  {
+    this.selector = selector;
+    this.lightDomServices = lightDomServices;
+    this.implementsTypes = implementsTypes;
+    this.bind = bind;
+  }
+}
+
+export class Component extends Directive {
+  //TODO: vsavkin: uncomment it once the issue with defining fields in a sublass works
+  template:any; //TemplateConfig;
+  lightDomServices:any; //List;
+  shadowDomServices:any; //List;
+  componentServices:any; //List;
+
+  @CONST()
+  constructor({
+    selector,
+    bind,
+    template,
+    lightDomServices,
+    shadowDomServices,
+    componentServices,
+    implementsTypes
+    }:{
+    selector:String,
+      bind:Object,
+      template:TemplateConfig,
+      lightDomServices:List,
+      shadowDomServices:List,
+      componentServices:List,
+      implementsTypes:List
+  }={})
+  {
+    super({
+      selector: selector,
+      bind: bind,
+      lightDomServices: lightDomServices,
+      implementsTypes: implementsTypes});
+
+    this.template = template;
+    this.lightDomServices = lightDomServices;
+    this.shadowDomServices = shadowDomServices;
+    this.componentServices = componentServices;
+  }
+}
+
+export class Decorator extends Directive {
+  @CONST()
+  constructor({
+      selector,
+      bind,
+      lightDomServices,
+      implementsTypes
+    }:{
+      selector:string,
+      bind:any,
+      lightDomServices:List,
+      implementsTypes:List
+    }={})
+  {
+    super({
+        selector: selector,
+        bind: bind,
+        lightDomServices: lightDomServices,
+        implementsTypes: implementsTypes
+    });
+  }
+}
+
+export class Template extends Directive {
+  @CONST()
+  constructor({
+      selector,
+      bind,
+      lightDomServices,
+      implementsTypes
+    }:{
+      selector:string,
+      bind:any,
+      lightDomServices:List,
+      implementsTypes:List
+    }={})
+  {
+    super({
+        selector: selector,
+        bind: bind,
+        lightDomServices: lightDomServices,
+        implementsTypes: implementsTypes
+    });
+  }
+}

modules/core/src/annotations/component.js

@@ -1,71 +0,0 @@
-import {Directive} from './directive';
-import {CONST} from 'facade/lang';
-
-export class Component extends Directive {
-  @CONST()
-  constructor({
-      selector,
-      bind,
-      template,
-      lightDomServices,
-      shadowDomServices,
-      componentServices,
-      implementsTypes
-    }:{
-      selector:String,
-      bind:Object,
-      template:TemplateConfig,
-      lightDomServices:List,
-      shadowDomServices:List,
-      componentServices:List,
-      implementsTypes:List
-    }={})
-  {
-    super({
-        selector: selector,
-        bind: bind,
-        lightDomServices: lightDomServices,
-        implementsTypes: implementsTypes});
-    this.template = template;
-    this.lightDomServices = lightDomServices;
-    this.shadowDomServices = shadowDomServices;
-    this.componentServices = componentServices;
-  }
-}
-
-///////////////////////////
-/*
-import 'package:angular/core.dart' as core;
-
-
-@Component(
-  selector: 'example',
-  template: const TemplateConfig(
-    url: 'example.dart',
-    uses: const [core.CONFIG],
-    directives: const [CompA],
-    formatters: const [Stringify]
-  ),
-  componentServices: [...],
-  shadowDomServices: [...]
-  implementsTypes: const [App]
-)
-class Example implements App {}
-
-class CompA {}
-
-@Formatter()
-class Stringify {}
-
-<CompA>
-  LightDOM:
-</CompA>
-
-CompA ShadowDOM:
-<div>
-  <CompB></CompB>
-</div>
-
-CompB SHadowDOM:
-<div></div>
-*/

modules/core/src/annotations/decorator.js

@@ -1,25 +0,0 @@
-import {Directive} from './directive';
-import {CONST} from 'facade/lang';
-
-export class Decorator extends Directive {
-  @CONST()
-  constructor({
-      selector,
-      bind,
-      lightDomServices,
-      implementsTypes
-    }:{
-      selector:String,
-      bind:Object,
-      lightDomServices:List,
-      implementsTypes:List
-    }={})
-  {
-    super({
-        selector: selector,
-        bind: bind,
-        lightDomServices: lightDomServices,
-        implementsTypes: implementsTypes
-    });
-  }
-}

modules/core/src/annotations/directive.js

@@ -1,25 +0,0 @@
-import {ABSTRACT, CONST} from 'facade/lang';
-import {List} from 'facade/collection';
-
-
-@ABSTRACT()
-export class Directive {
-  @CONST()
-  constructor({
-      selector,
-      bind,
-      lightDomServices,
-      implementsTypes
-    }:{
-      selector:String,
-      bind:Object,
-      lightDomServices:List,
-      implementsTypes:List
-    }={})
-  {
-    this.selector = selector;
-    this.lightDomServices = lightDomServices;
-    this.implementsTypes = implementsTypes;
-    this.bind = bind;
-  }
-}

modules/core/src/annotations/template.js

@@ -1,25 +0,0 @@
-import {Directive} from './directive';
-import {CONST} from 'facade/lang';
-
-export class Template extends Directive {
-  @CONST()
-  constructor({
-      selector,
-      bind,
-      lightDomServices,
-      implementsTypes
-    }:{
-      selector:String,
-      bind:Object,
-      lightDomServices:List,
-      implementsTypes:List
-    }={})
-  {
-    super({
-        selector: selector,
-        bind: bind,
-        lightDomServices: lightDomServices,
-        implementsTypes: implementsTypes
-    });
-  }
-}

modules/core/src/annotations/template_config.js

@@ -1,7 +1,12 @@
-import {ABSTRACT, CONST} from 'facade/lang';
-// import {Type, List} from 'facade/lang';
+import {ABSTRACT, CONST, Type} from 'facade/lang';
+import {List} from 'facade/collection';
 
 export class TemplateConfig {
+  url:any; //string;
+  inline:any; //string;
+  directives:any; //List<Type>;
+  formatters:any; //List<Type>;
+  source:any;//List<TemplateConfig>;
   @CONST()
   constructor({
       url,
@@ -10,8 +15,8 @@ export class TemplateConfig {
       formatters,
       source
     }: {
-      url: String,
-      inline: String,
+      url: string,
+      inline: string,
       directives: List<Type>,
       formatters: List<Type>,
       source: List<TemplateConfig>