[FEATURE REQUEST] Support debugging for YACC

Type: Debugger

Can't DEBUG YACC files.

I wrote a short yacc file which had a problem.
I wasn't able to attach a debugger to the main function.

I would like to see the following:

• Being able to set and hit breakpoints in the original .y file

• Being able to hit breakpoints in the y.tab.c file (generated by yacc).

• have automatic task support for makefiles (should this be a new issue)?

• OS and Version: Ubuntu 19.10

• VS Code Version: ms-vscode.cpptools

• C/C++ Extension Version: 0.26.3

To Reproduce
I made a short version of a yacc file to highlight the problems.
This yacc file is not supposed to work, it's supposed to highlight the problems with the debugger.
All the files are in this gist: https://gist.github.com/rvanlaar/000c06347ef6fd6bfb5e7ddb8e17f0aa

The y.tab.c is generated with debug options enabled:
yacc -t --debug --verbose hoc1.y

Steps to reproduce the behavior:

1. Open the files in VSCode
2. Set a breakpoint on line y.tab.c: 1458
3. compile with: cc -g y.tab.c -o hoc1
4. run the debugger
5. See it doesn't hit the breakpoint while executing

Additional context
https://gist.github.com/rvanlaar/000c06347ef6fd6bfb5e7ddb8e17f0aa#file-full-debug-log
If applicable, please include logging by adding "logging": { "engineLogging": true, "trace": true, "traceResponse": true } in your launch.json
Add any other context about the problem here including log or error messages in your Debug Console or Output windows.

Inizia con i file forniti hoc1.y e y.tab.c, riproduci il malfunzionamento dei breakpoint usando yacc -t --debug --verbose hoc1.y e cc -g y.tab.c -o hoc1, quindi esamina il log del debugger collegato. Il lavoro è completato quando è possibile impostare e raggiungere breakpoint sia nel file .y originale sia nel file y.tab.c generato.