fix(ivy): template type-check errors from TS should not use NG error codes (#35146)

A bug previously caused the template type-checking diagnostics produced by
TypeScript for template expressions to use -99-prefixed error codes. These
codes are converted to "NG" errors instead of "TS" errors during diagnostic
printing. This commit fixes the issue.

PR Close #35146

packages/compiler-cli/src/ngtsc/typecheck/src/diagnostics.ts

@@ -8,7 +8,6 @@
 import {AbsoluteSourceSpan, ParseSourceSpan} from '@angular/compiler';
 import * as ts from 'typescript';
 
-import {ErrorCode, ngErrorCode} from '../../diagnostics';
 import {getTokenAtPosition} from '../../util/src/typescript';
 
 import {ExternalTemplateSourceMapping, TemplateId, TemplateSourceMapping} from './api';
@@ -146,7 +145,7 @@ export function translateDiagnostic(
  */
 export function makeTemplateDiagnostic(
     mapping: TemplateSourceMapping, span: ParseSourceSpan, category: ts.DiagnosticCategory,
-    code: ErrorCode, messageText: string | ts.DiagnosticMessageChain, relatedMessage?: {
+    code: number, messageText: string | ts.DiagnosticMessageChain, relatedMessage?: {
       text: string,
       span: ParseSourceSpan,
     }): TemplateDiagnostic {
@@ -167,7 +166,9 @@ export function makeTemplateDiagnostic(
     // directly into the bytes of the source file.
     return {
       source: 'ngtsc',
-      code: ngErrorCode(code), category, messageText,
+      code,
+      category,
+      messageText,
       file: mapping.node.getSourceFile(),
       componentFile: mapping.node.getSourceFile(),
       start: span.start.offset,
@@ -216,7 +217,8 @@ export function makeTemplateDiagnostic(
     return {
       source: 'ngtsc',
       category,
-      code: ngErrorCode(code), messageText,
+      code,
+      messageText,
       file: sf,
       componentFile: componentSf,
       start: span.start.offset,

packages/compiler-cli/src/ngtsc/typecheck/src/dom.ts

@@ -9,7 +9,7 @@
 import {DomElementSchemaRegistry, ParseSourceSpan, SchemaMetadata, TmplAstElement} from '@angular/compiler';
 import * as ts from 'typescript';
 
-import {ErrorCode} from '../../diagnostics';
+import {ErrorCode, ngErrorCode} from '../../diagnostics';
 
 import {TemplateId} from './api';
 import {TemplateSourceResolver, makeTemplateDiagnostic} from './diagnostics';
@@ -92,7 +92,7 @@ export class RegistryDomSchemaChecker implements DomSchemaChecker {
 
       const diag = makeTemplateDiagnostic(
           mapping, element.sourceSpan, ts.DiagnosticCategory.Error,
-          ErrorCode.SCHEMA_INVALID_ELEMENT, errorMsg);
+          ngErrorCode(ErrorCode.SCHEMA_INVALID_ELEMENT), errorMsg);
       this._diagnostics.push(diag);
     }
   }
@@ -117,7 +117,8 @@ export class RegistryDomSchemaChecker implements DomSchemaChecker {
       }
 
       const diag = makeTemplateDiagnostic(
-          mapping, span, ts.DiagnosticCategory.Error, ErrorCode.SCHEMA_INVALID_ATTRIBUTE, errorMsg);
+          mapping, span, ts.DiagnosticCategory.Error,
+          ngErrorCode(ErrorCode.SCHEMA_INVALID_ATTRIBUTE), errorMsg);
       this._diagnostics.push(diag);
     }
   }

packages/compiler-cli/src/ngtsc/typecheck/src/oob.ts

@@ -66,7 +66,7 @@ export class OutOfBandDiagnosticRecorderImpl implements OutOfBandDiagnosticRecor
     const errorMsg = `No directive found with exportAs '${value}'.`;
     this._diagnostics.push(makeTemplateDiagnostic(
         mapping, ref.valueSpan || ref.sourceSpan, ts.DiagnosticCategory.Error,
-        ErrorCode.MISSING_REFERENCE_TARGET, errorMsg));
+        ngErrorCode(ErrorCode.MISSING_REFERENCE_TARGET), errorMsg));
   }
 
   missingPipe(templateId: TemplateId, ast: BindingPipe): void {
@@ -79,7 +79,8 @@ export class OutOfBandDiagnosticRecorderImpl implements OutOfBandDiagnosticRecor
           `Assertion failure: no SourceLocation found for usage of pipe '${ast.name}'.`);
     }
     this._diagnostics.push(makeTemplateDiagnostic(
-        mapping, sourceSpan, ts.DiagnosticCategory.Error, ErrorCode.MISSING_PIPE, errorMsg));
+        mapping, sourceSpan, ts.DiagnosticCategory.Error, ngErrorCode(ErrorCode.MISSING_PIPE),
+        errorMsg));
   }
 
   illegalAssignmentToTemplateVar(
@@ -93,8 +94,8 @@ export class OutOfBandDiagnosticRecorderImpl implements OutOfBandDiagnosticRecor
       throw new Error(`Assertion failure: no SourceLocation found for property binding.`);
     }
     this._diagnostics.push(makeTemplateDiagnostic(
-        mapping, sourceSpan, ts.DiagnosticCategory.Error, ErrorCode.WRITE_TO_READ_ONLY_VARIABLE,
-        errorMsg, {
+        mapping, sourceSpan, ts.DiagnosticCategory.Error,
+        ngErrorCode(ErrorCode.WRITE_TO_READ_ONLY_VARIABLE), errorMsg, {
           text: `The variable ${assignment.name} is declared here.`,
           span: target.valueSpan || target.sourceSpan,
         }));

packages/compiler-cli/test/ngtsc/template_typecheck_spec.ts

@@ -135,6 +135,8 @@ export declare class AnimationEvent {
       const diags = env.driveDiagnostics();
       expect(diags.length).toBe(1);
       expect(diags[0].messageText).toEqual(`Type 'string' is not assignable to type 'number'.`);
+      // The reported error code should be in the TS error space, not a -99 "NG" code.
+      expect(diags[0].code).toBeGreaterThan(0);
     });
 
     it('should support inputs and outputs with names that are not JavaScript identifiers', () => {