refactor: fix typos (#18000)

tools/@angular/tsc-wrapped/src/evaluator.ts

@@ -375,7 +375,7 @@ export class Evaluator {
         if (expression && this.isFoldable(propertyAccessExpression.expression))
           return (<any>expression)[<string>member];
         if (isMetadataModuleReferenceExpression(expression)) {
-          // A select into a module refrence and be converted into a reference to the symbol
+          // A select into a module reference and be converted into a reference to the symbol
           // in the module
           return recordEntry(
               {__symbolic: 'reference', module: expression.module, name: member}, node);

tools/@angular/tsc-wrapped/src/options.ts

@@ -28,7 +28,7 @@ interface Options extends ts.CompilerOptions {
   // Whether to generate a flat module index of the given name and the corresponding
   // flat module metadata. This option is intended to be used when creating flat
   // modules similar to how `@angular/core` and `@angular/common` are packaged.
-  // When this option is used the `package.json` for the library should refered to the
+  // When this option is used the `package.json` for the library should referred to the
   // generated flat module index instead of the library index file. When using this
   // option only one .metadata.json file is produced that contains all the metadata
   // necessary for symbols exported from the library index.

tools/@angular/tsc-wrapped/test/collector.spec.ts

@@ -920,7 +920,7 @@ const FILES: Directory = {
         }
 
         getHeroes() {
-          this._heroService.getHeroesSlowly().then(heros => this.heroes = heros);
+          this._heroService.getHeroesSlowly().then(heroes => this.heroes = heroes);
         }
       }`,
     'hero.ts': `