fix: restore moduleHasErrors guard in after-compile

Agent-Logs-Url: https://github.com/TypeStrong/ts-loader/sessions/caa59e7e-b86c-4051-9d2e-f6f6bea4b768

Co-authored-by: johnnyreilly <1010525+johnnyreilly@users.noreply.github.com>

Author: Copilot

src/after-compile.ts

@@ -266,15 +266,15 @@ function provideErrorsToWebpack(
           compilation.compiler.context
         );
 
-        // if (!moduleHasErrors(module, instance.isWebpack5)) {
+        if (!moduleHasErrors(module, instance.isWebpack5)) {
           formattedErrors.forEach(error => {
             if (module.addError) {
               module.addError(error);
             } else {
               module.errors.push(error);
             }
           });
-        // }
+        }
 
         compilation.errors.push(...formattedErrors);
       });
@@ -336,15 +336,15 @@ function provideSolutionErrorsToWebpack(
           compilation.compiler.context
         );
 
-        // if (!moduleHasErrors(module, instance.isWebpack5)) {
+        if (!moduleHasErrors(module, instance.isWebpack5)) {
           formattedErrors.forEach(error => {
             if (module.addError) {
               module.addError(error);
             } else {
               module.errors.push(error);
             }
           });
-        // }
+        }
 
         compilation.errors.push(...formattedErrors);
       });
@@ -577,9 +577,9 @@ function isTSLoaderModuleError(error: any, loaderOptions: LoaderOptions) {
   );
 }
 
-// function moduleHasErrors(module: webpack.Module, isWebpack5: boolean) {
-//   return isWebpack5
-//     ? Array.from(module.getErrors!() || []).length > 0
-//     : (((module as any).errors as webpack.WebpackError[] | undefined) || [])
-//         .length > 0;
-// }
+function moduleHasErrors(module: webpack.Module, isWebpack5: boolean) {
+  return isWebpack5
+    ? Array.from(module.getErrors!() || []).length > 0
+    : (((module as any).errors as webpack.WebpackError[] | undefined) || [])
+        .length > 0;
+}