chore: add more type annotations

modules/angular2/src/change_detection/parser/ast.js

@@ -6,7 +6,7 @@ export class AST {
     throw new BaseException("Not supported");
   }
 
-  get isAssignable() {
+  get isAssignable():boolean {
     return false;
   }
 
@@ -113,7 +113,7 @@ export class AccessMember extends AST {
     }
   }
 
-  get isAssignable() {
+  get isAssignable():boolean {
     return true;
   }
 
@@ -148,7 +148,7 @@ export class KeyedAccess extends AST {
     return obj[key];
   }
 
-  get isAssignable() {
+  get isAssignable():boolean {
     return true;
   }
 
@@ -397,7 +397,7 @@ export class ASTWithSource extends AST {
     return this.ast.eval(context, locals);
   }
 
-  get isAssignable() {
+  get isAssignable():boolean {
     return this.ast.isAssignable;
   }
 

modules/angular2/src/change_detection/parser/locals.js

@@ -34,7 +34,7 @@ export class Locals {
     throw new BaseException(`Cannot find '${name}'`);
   }
 
-  set(name:string, value) {
+  set(name:string, value):void {
     // TODO(rado): consider removing this check if we can guarantee this is not
     // exposed to the public API.
     // TODO: vsavkin maybe it should check only the local map
@@ -45,7 +45,7 @@ export class Locals {
     }
   }
 
-  clearValues() {
+  clearValues():void {
     MapWrapper.clearValues(this.current);
   }
 }