fix(language-service): Add global symbol for $any() (#33245)

This commit introduces a "global symbol table" in the language service for symbols that are available in the top level scope,
and add `$any()` to it.

See https://angular.io/guide/template-syntax#the-any-type-cast-function

PR closes https://github.com/angular/vscode-ng-language-service/issues/242

PR Close #33245

packages/language-service/src/template.ts

@@ -10,6 +10,7 @@ import {getClassMembersFromDeclaration, getPipesTable, getSymbolQuery} from '@an
 import * as ts from 'typescript';
 
 import {isAstResult} from './common';
+import {createGlobalSymbolTable} from './global_symbols';
 import * as ng from './types';
 import {TypeScriptServiceHost} from './typescript_host';
 
@@ -48,8 +49,10 @@ abstract class BaseTemplate implements ng.TemplateSource {
     if (!this.membersTable) {
       const typeChecker = this.program.getTypeChecker();
       const sourceFile = this.classDeclNode.getSourceFile();
-      this.membersTable =
-          getClassMembersFromDeclaration(this.program, typeChecker, sourceFile, this.classDeclNode);
+      this.membersTable = this.query.mergeSymbolTable([
+        createGlobalSymbolTable(this.query),
+        getClassMembersFromDeclaration(this.program, typeChecker, sourceFile, this.classDeclNode),
+      ]);
     }
     return this.membersTable;
   }