Fix missing trailing newlines, move tests to exec directory

6 jobs for !48 with compile-firm/group3 in 15 minutes and 42 seconds (queued for 8 seconds)
latest merge request
Name Stage Failure
failed
gruppen: [5, CompPrakt21/Compiler, 0] Run

[SUCCESS] compile-firm:ReallyEfficientFactorization.java correct
[SUCCESS] compile-firm:TestOverflow.java correct
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Ran 35 tests, of which 2 failed.
A full report for each test can be found at ../../../mjtest/reports/06-12-21_13-06-16_compile-firm.failed
Ran 406 tests, of which 4 failed.
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1

failed
gruppen: [4, iComputerfreak/DerCompiler, 1] Run
[0020]    }
[0021]

----------------------------------------
Ran 35 tests, of which 35 failed.
A full report for each test can be found at ../../../mjtest/reports/06-12-21_13-04-45_compile-firm.failed
Ran 406 tests, of which 35 failed.
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1

failed
gruppen: [2, compilerpraktikum/compiler, 1] Run
[0020]    }
[0021]

----------------------------------------
Ran 35 tests, of which 35 failed.
A full report for each test can be found at ../../../mjtest/reports/06-12-21_13-00-52_compile-firm.failed
Ran 406 tests, of which 35 failed.
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1

failed
gruppen: [3, larsk21/compiler-minijava, 1] Run
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1