- Adhere to the calling convention more in the machine code generator on amd64, namely by keeping the stack pointer aligned before calling into C code. GCC 8 started to emit instructions relying on the correct, alignment, causing General Protection Faults. - Fixed some corner cases where file names where missing from backtraces.
- Don't error if stdin modifier is supplied as the empty string.
o Protocols.HTTP.Session - Fix race-condition when multiple threads call give_me_connection() with the same url at the same time. - Don't attempt to reuse SessionQuery objects. give_me_connection() now always returns a new SessionQuery object (albeit sometimes with a reused connection).