refactor(compiler): add required file header

Add required file header.

packages/compiler/src/template/pipeline/src/phases/creation_var_colocation.ts

@@ -1,3 +1,11 @@
+/**
+ * @license
+ * Copyright Google LLC All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+
 import * as o from '../../../../output/output_ast';
 import * as ir from '../../ir';
 import type {CompilationJob, CompilationUnit} from '../compilation';