I found one of my first try. I thought I'd go for one of the later ones, so tried Gabriel Knight 2. It clearly has the symbol tables in there:
It mentions source file names:
..\array.cpp
..\asm2cpp.cpp
..\audio.cpp
..\blob.cpp
..\celobj.cpp
..\config.cpp
..\cursord.cpp
..\dialog.cpp
..\drawlist.cpp
..\eventd.cpp
..\except.cpp
..\font.cpp
..\graph.cpp
..\graphmd.cpp
..\graphmgr.cpp
..\intrpt.cpp
I:\SYS\SCI\GK2\hotkey.cpp
..\language.cpp
..\list.cpp
..\memmgr.cpp
..\message.cpp
..\motion.cpp
..\moused.cpp
..\movie.cpp
..\palette.cpp
..\palmgrd.cpp
..\palmgri.cpp
..\plane.cpp
..\playvmd.cpp
..\plist.cpp
..\polygon.cpp
..\rectlist.cpp
..\remap.cpp
..\resource.cpp
..\restype.cpp
..\robot.cpp
..\savegame.cpp
..\sci.cpp
..\scid.cpp
..\screen.cpp
..\script.cpp
..\shwstyle.cpp
..\si.cpp
..\silist.cpp
..\soundd.cpp
..\table.cpp
..\vmdbase.cpp
..\vmd.cpp
..\vmdview.cpp
..\window.cpp
and a whole bunch of symbols, such as these (just to list a few):
LNew
LDispose
LNewNode
LFirstNode
LLastNode
LEmpty
LNextNode
LPrevNode
LNodeValue
LAddAfter
LAddToFront
LAddToEnd
LAddBefore
LMoveToFront
LMoveToEnd
LFindKey
LDeleteKey
LIndexOf
LEachElementDo
LFirstTrue
LAllTrue
LSort
Load
Unload
ScriptID
DisposeScript
Lock
ResCheck
Purge
SetLanguage
It's the same with Police Quest SWAT, QFG4, LSL6, and Space Quest 6. There doesn't seem to be as many symbols as I would have expected though.
