Problem:    Debugger test fails.
Solution:   Adjust eval command.

Problem:    Vim9: crash when debugging a function with line continuation.
Solution:   Check for a NULL pointer. (closes #8521)

Problem:    Temp files remain after running tests.
Solution:   Delete the right files. (Dominique Pellé, closes #8509)

Problem:    Vim9: breakpoint on "for" does not work.
Solution:   Use the right line number in ISN_DEBUG. (closes #8486)

Problem:    Vim9: debugging lambda does not work.
Solution:   Use the compile type of the function when compiling a lambda.
            (closes #8412)

Problem:    Vim9: breakpoint at a comment line does not work.
Solution:   Add the comment line number to the debug instruction.
            (closes #8429)

Problem:    Vim9: breakpoint in compiled function not always checked.
Solution:   Check for breakpoint when calling compiled function from compiled
            function.

Problem:    Vim9: cannot set breakpoint in compiled function.
Solution:   Check for breakpoint when calling a function.

Problem:    Vim9: debugger shows too many lines.
Solution:   Truncate at a comment, "enddef", etc. (closes #8392)

Problem:    Vim: when debugging only the first line of a command using line
            continuation is displayed.
Solution:   Find the next command and concatenate lines until that one.
            (closes #8392)