High-performance understanding for stack traces (Make error logs more productive). Output the modern C# 7.0+ features in stack traces that looks like the C# source code that generated them rather than IL formatted. .NET stack traces output the compiler transformed methods; rather than the source code methods, which make them slow to mentally parse and match back to the source code. The current output was good for C# 1.0; but has become progressively worse since C# 2.0 (iterators, generics)...