Add hot location debug strings support to yklua.

[vext01]

Lua-level source lines are attached to hot locations.

Example output:

Starting richards benchmark ...
yk-jit-event: start-tracing: ./richards.lua:489: while self.current_task ~= NO_TASK do
yk-jit-event: stop-tracing: ./richards.lua:489: while self.current_task ~= NO_TASK do
yk-jit-event: start-tracing: ./richards.lua:60: while NO_WORK ~= link do
yk-warning: tracing-aborted: encountered compiled trace: ./richards.lua:489: while self.current_task ~= NO_TASK do
yk-jit-event: start-tracing: ./richards.lua:60: while NO_WORK ~= link do
yk-warning: tracing-aborted: encountered compiled trace: ./richards.lua:489: while self.current_task ~= NO_TASK do
yk-jit-event: start-tracing: ./richards.lua:60: while NO_WORK ~= link do
yk-warning: tracing-aborted: encountered compiled trace: ./richards.lua:489: while self.current_task ~= NO_TASK do
yk-jit-event: start-tracing: ./richards.lua:60: while NO_WORK ~= link do
yk-warning: tracing-aborted: encountered compiled trace: ./richards.lua:489: while self.current_task ~= NO_TASK do
yk-jit-event: start-tracing: ./richards.lua:60: while NO_WORK ~= link do
yk-warning: tracing-aborted: encountered compiled trace: ./richards.lua:489: while self.current_task ~= NO_TASK do
yk-jit-event: start-tracing: ./richards.lua:60: while NO_WORK ~= link do
yk-warning: tracing-aborted: encountered compiled trace: ./richards.lua:489: while self.current_task ~= NO_TASK do
yk-jit-event: start-tracing: ./richards.lua:395: data.count = data.count + 1
yk-warning: tracing-aborted: encountered compiled trace: ./richards.lua:489: while self.current_task ~= NO_TASK do
yk-jit-event: start-tracing: ./richards.lua:395: data.count = data.count + 1
yk-jit-event: stop-tracing: ./richards.lua:395: data.count = data.count + 1
yk-jit-event: enter-jit-code: ./richards.lua:395: data.count = data.count + 1
...

[vext01]

Assigning this to @ptersilie now since laurie is afk for the rest of the day.

[ptersilie]

yk-jit-event: start-tracing: ./richards.lua:395: data.count = data.count + 1

Why is it tracing this line? That doesn't look like a loop?

[vext01]

It's the first operation in a loop. I assume this is just inaccuracy in the debug info.

[ptersilie]

11:11:25 lparser.c:35:10: fatal error: yk.h: No such file or directory
11:11:25 35 | #include <yk.h>
11:11:25 | ^~~~~~

[vext01]

Force pushed a fix.