Fix test turning warnings into ErrorExceptions

[staabm]

Fixes

1) /home/runner/work/phpunit/phpunit/tests/end-to-end/regression/5764/5764.phpt
Failed asserting that string matches format description.
--- Expected
+++ Actual
@@ @@
 
 1) No tests found in class "PHPUnit\TestFixture\Issue5764\Issue5764Test".
 
-No tests executed!
+No tests executed!
+
+Fatal error: Uncaught ErrorException: file(Standard input code): Failed to open stream: No such file or directory in /home/runner/work/phpunit/phpunit/vendor/phpunit/php-code-coverage/src/Data/RawCodeCoverageData.php:270
+Stack trace:
+#0 [internal function]: PHPUnit\TextUI\Application::{closure:/home/runner/work/phpunit/phpunit/tests/end-to-end/regression/5764/error-handler.php:10}()
+#1 /home/runner/work/phpunit/phpunit/vendor/phpunit/php-code-coverage/src/Data/RawCodeCoverageData.php(270): file()
+#2 /home/runner/work/phpunit/phpunit/vendor/phpunit/php-code-coverage/src/Data/RawCodeCoverageData.php(256): SebastianBergmann\CodeCoverage\Data\RawCodeCoverageData->getEmptyLinesForFile()
+#3 /home/runner/work/phpunit/phpunit/vendor/phpunit/php-code-coverage/src/Data/RawCodeCoverageData.php(106): SebastianBergmann\CodeCoverage\Data\RawCodeCoverageData->skipEmptyLines()
+#4 /home/runner/work/phpunit/phpunit/vendor/phpunit/php-code-coverage/src/Data/RawCodeCoverageData.php(59): SebastianBergmann\CodeCoverage\Data\RawCodeCoverageData->__construct()
+#5 /home/runner/work/phpunit/phpunit/vendor/phpunit/php-code-coverage/src/Driver/XdebugDriver.php(117): SebastianBergmann\CodeCoverage\Data\RawCodeCoverageData::fromXdebugWithoutPathCoverage()
+#6 /home/runner/work/phpunit/phpunit/vendor/phpunit/php-code-coverage/src/CodeCoverage.php(169): SebastianBergmann\CodeCoverage\Driver\XdebugDriver->stop()
+#7 Standard input code(47): SebastianBergmann\CodeCoverage\CodeCoverage->stop()
+#8 [internal function]: {closure:Standard input code:43}()
+#9 {main}
+  thrown in /home/runner/work/phpunit/phpunit/vendor/phpunit/php-code-coverage/src/Data/RawCodeCoverageData.php on line 270

/home/runner/work/phpunit/phpunit/tests/end-to-end/regression/5764/5764.phpt:21
/home/runner/work/phpunit/phpunit/src/Framework/TestSuite.php:369
/home/runner/work/phpunit/phpunit/src/Framework/TestSuite.php:369
/home/runner/work/phpunit/phpunit/src/TextUI/TestRunner.php:64
/home/runner/work/phpunit/phpunit/src/TextUI/Application.php:210

refs sebastianbergmann/php-code-coverage@c41f730#commitcomment-150604845

[staabm]

I was not able to reproduce the error locally, but I guess the PR should fix it

[staabm]

looking at the commit which added the test makes me feel uneasy:
3b58e65#diff-f87e0db621128793460028267b9aa872d359ed51c913d18f9cffcf7d6a0b40a2R3

it reads like we want to play save with tooling registering a "wrong error handler", which mean we should better revert sebastianbergmann/php-code-coverage@c41f730 in case we still thing like that

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.40%. Comparing base (e4e732d) to head (f1f1f2b).

Additional details and impacted files

@@            Coverage Diff            @@
##               10.5    #6089   +/-   ##
=========================================
  Coverage     94.40%   94.40%           
  Complexity     6464     6464           
=========================================
  Files           681      681           
  Lines         20501    20501           
=========================================
  Hits          19353    19353           
  Misses         1148     1148           

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[sebastianbergmann]

we should better revert sebastianbergmann/php-code-coverage@c41f730

I think so, too.

[sebastianbergmann]

Thank you for your contribution. I appreciate the time you invested in preparing this pull request. However, I have decided not to merge it.