Fail is translated incorrectly in for-loop

[PaulKlint]

It seems that we are not handling the fail label in for-loops correctly. This correct example

module experiments::Compiler::Examples::Tst

value main(list[value] args){int n = 0; loop:for(int i <- [1,2,3,4], n <= 3){ if (n == 3) fail loop; n = n + 1; } return n == 3;}

leads during loading to:

|rascal://experiments::Compiler::RVM::Run|(217,715,<12,0>,<23,28>): Java("RuntimeException","PANIC: undefined label FAIL_loop")
    at org.rascalmpl.library.experiments.Compiler.RVM.Interpreter.CodeBlock.getLabelPC(|file:///CodeBlock.java|(0,0,<134,0>,<134,0>))