Compiler output shows incorrect lines/files for unused symbols warning

[AGraber]

Is this a BUG REPORT, FEATURE REQUEST or QUESTION?:

• Bug Report
• Feature Request
• Question

What happened:
The compiler is returning lines that don't have any relevance to the warning (regarding the update done in 05582c8):

E:\pawn-compiler-bug-demo\gamemodes\demo.pwn(36) : warning 203: symbol is never used: "FadeToWhite"
E:\pawn-compiler-bug-demo\gamemodes\demo.pwn(14) : warning 203: symbol is never used: "LoadedSystems"
E:\pawn-compiler-bug-demo\gamemodes\demo.pwn(16) : warning 203: symbol is never used: "TotalSystems"
E:\pawn-compiler-bug-demo\gamemodes\demo.pwn(16 -- 36) : warning 203: symbol is never used: "log"

What you expected to happen:
Correct files/lines like this:

E:\pawn-compiler-bug-demo\gamemodes\inc\core\impl.inc(40) : warning 203: symbol is never used: "FadeToWhite"
E:\pawn-compiler-bug-demo\gamemodes\inc\core\header.inc(14) : warning 203: symbol is never used: "LoadedSystems"
E:\pawn-compiler-bug-demo\gamemodes\inc\core\header.inc(16) : warning 203: symbol is never used: "TotalSystems"
E:\pawn-compiler-bug-demo\gamemodes\inc\log\header.inc(9) : warning 203: symbol is never used: "log"

How to reproduce it (as minimally and precisely as possible):
Clone AGraber/pawn-compiler-bug-demo, ensure and build with sampctl

Anything else we need to know?:
Although I usually compile with sampctl, I compiled directly with the compiler to make sure this was a compiler bug rather than a sampctl bug.

Also, for some reason, it looks like in unused symbols "LoadedSystems" and "TotalSystems", it gets the line numbers correctly, but the filename is still wrong

Environment:

• Operating System
  Windows 10 Pro Insider Preview Build 17672.rs_prerelease.180511-1445
• Compiler version
  3.10.7
• How are you invoking the compiler? Pawno, Sublime, vscode, sampctl or command-line?
  Command-line for the purpose of this issue (using the --dryRun output of sampctl).
• If using sampctl, the version number
  1.7.19

[YashasSamaga]

I think there are more warnings/errors where the line numbers aren't correct. Let's use this issue to list them all.

[Southclaws]

I've noticed this too, only with warning 203.