Line coverage stubs: be consistent with actual xDebug/PCOV output

[Slamdunk]

Found this inconsistency while investigating #889

I manually checked both Xdebug3Driver and PcovDriver outputs and they differ a bit from what's coded in TestCase.

Most of the differences are negligible and have no impact on the purpose of the involved tests, they all still pass, but the diff addressed in this PR can sneak bugs in the future if not merged, especially while merging multiple CC reports.

[codecov]

Codecov Report

Merging #891 (d37f1c4) into 9.2 (caeda52) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##                9.2     #891   +/-   ##
=========================================
  Coverage     83.19%   83.19%           
  Complexity     1112     1112           
=========================================
  Files            62       62           
  Lines          3648     3648           
=========================================
  Hits           3035     3035           
  Misses          613      613           

---

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[Slamdunk]

Reference:

php-code-coverage/tests/_files/BankAccount.php

Lines 11 to 18 in caeda52

	protected function setBalance($balance)
	{
	if ($balance >= 0) {
	$this->balance = $balance;
	} else {
	throw new RuntimeException;
	}
	}

Line 14

Line 14 is always reported by each driver. Not having it here can introduce a bug on CC merging in the future

Line 15

This line is not reported by any driver, but I kept it here because removing it would fail pretty much every test in this library.
I've checked each of them, and removing this reported line to be consistent with drivers output adds no value to the test suite.

[Slamdunk]

To be more clear on how I got this PR committed:

1. I've run each of the 4 BankAccountTest tests
2. Gathered xdebug_get_code_coverage() output
3. Copy-pasted it into \SebastianBergmann\CodeCoverage\TestCase::getLineCoverageXdebugDataForBankAccount (and partially into getPathCoverageXdebugDataForBankAccount)
4. Manually re-added line 15 => -1, to the arrays to get the test pass again