7 uses of ERROR_REPORTING_HIDE in Drupal 10

BigPipeTest::testBigPipe in core/modules/big_pipe/tests/src/Functional/BigPipeTest.php

Tests BigPipe-delivered HTML responses when JavaScript is enabled.

BigPipeTest::testBigPipeNoJs in core/modules/big_pipe/tests/src/Functional/BigPipeTest.php

Tests BigPipe-delivered HTML responses when JavaScript is disabled.

ErrorHandlerTest::testErrorHandler in core/modules/system/tests/src/Functional/System/ErrorHandlerTest.php

Tests the error handler.

ErrorHandlerTest::testExceptionHandler in core/modules/system/tests/src/Functional/System/ErrorHandlerTest.php

Tests the exception handler.

LoggingForm::buildForm in core/modules/system/src/Form/LoggingForm.php

Form constructor.

UncaughtExceptionTest::testUncaughtException in core/tests/Drupal/FunctionalTests/Bootstrap/UncaughtExceptionTest.php

Tests uncaught exception handling when system is in a bad state.

_drupal_get_error_level in core/includes/errors.inc

Returns the current error level.