Better error message for * Assertion at /Users/runner/work/1/s/src/mono/mono/metadata/marshal-ilgen.c:6204, condition `sig->param_count == invoke_sig->param_count + 1' not met

[rolfbjarne]

I recently ran into this assert in the AOT compiler:

• Assertion at /Users/runner/work/1/s/src/mono/mono/metadata/marshal-ilgen.c:6204, condition `sig->param_count == invoke_sig->param_count + 1' not met

runtime/src/mono/mono/metadata/marshal-ilgen.c

Line 6228 in 55211d2

g_assert (sig->param_count == invoke_sig->param_count + 1);

This was due to a bug in my code, but it took me quite a while to figure out where the problem was, because the assert doesn't give any information as to where in the invalid assembly I should even start looking.

In other words: the bug is that this assert should show information about the type/method in question that causes the problem, which would make it much easier to figure out where the problem is.

I couldn't figure out the best area label to add to this issue. If you have write-permissions please help me learn by adding exactly one area label.