Systematically retrieve task name when an exception is thrown

[dumoulin]

For example, if you try to use the method setCodeFile on a CodeTask with a bad filename, you will have on output:

ERROR org.openmole.commons.exception.InternalProcessingError:
null
        at org.openmole.plugin.tools.code.FileSourceCode.getCode (FileSourceCode.java:54)
        at org.openmole.plugin.tools.groovy.ContextToGroovyCode.setCode (ContextToGroovyCode.java:61)
        at org.openmole.plugin.task.code.CodeTask.setCode (CodeTask.java:69)
        at org.openmole.plugin.task.code.CodeTask.setCodeFile (CodeTask.java:77)

It's not helpfull because you don't know the task to investigate. In this case, we can intercept the exception and print the name of the task. But maybe, we can find a more generic way to easily inject some task metadata as the name before rethrowing the exception.