Add some tests for register transfer graphs

7 jobs for !52 with exec/register-transfer in 16 minutes and 22 seconds (queued for 2 seconds)
latest merge request
Name Stage Failure
failed
gruppen: [4, iComputerfreak/DerCompiler, 1] Run
[SUCCESS] compile-firm:RecursiveFoo.java                    correct
[SUCCESS] compile-firm:TestAndFoo.java correct
[SUCCESS] compile-firm:TestOverflow.java correct
----------------------------------------
Ran 40 tests, of which 18 failed.
A full report for each test can be found at ../../../mjtest/reports/11-01-22_18-45-41_compile-firm.failed
Ran 411 tests, of which 18 failed.
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1

failed
gruppen: [2, compilerpraktikum/compiler, 1] Run
[SUCCESS] compile-firm:RecursiveFoo.java                    correct
[SUCCESS] compile-firm:TestAndFoo.java correct
[SUCCESS] compile-firm:TestOverflow.java correct
----------------------------------------
Ran 40 tests, of which 1 failed.
A full report for each test can be found at ../../../mjtest/reports/11-01-22_18-42-42_compile-firm.failed
Ran 411 tests, of which 1 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