IWYU: Tests and more Common cleanup

[jwrober]

Part of #2464

[jwrober]

Stuck on

helpdata.cpp:459:18: warning: no header providing "QT_VERSION_STR" is directly included [misc-include-cleaner]
   71 |                  QT_VERSION_STR, qVersion());
      |                  ^

[jwrober]

Also

common/scriptcore/tolua_common_a_gen.cpp:19:1: warning: no header providing "LUALIB_API" is directly included [misc-include-cleaner]
    6 | 
    7 | #ifndef __cplusplus
    8 | #include <stdlib.h>
    9 | #endif
   10 | #ifdef __cplusplus
   11 |  extern "C" int tolua_bnd_takeownership (lua_State* L); // from tolua_map.c
   12 | #else
   13 |  int tolua_bnd_takeownership (lua_State* L); /* from tolua_map.c */
   14 | #endif
   15 | #include <string.h>
   16 | 
   17 | /* Exported function */
   18 | TOLUA_API int tolua_common_a_open (lua_State* tolua_S);
   19 | LUALIB_API int luaopen_common_a (lua_State* tolua_S);
      | ^

with similar message for tolua_signal_gen.cpp and tolua_game_gen.cpp

[lmoureaux]

• QT_VERSION_STR is provided by QtConfig and QtVersionChecks
• LUALIB_API comes from luaconf.h

[jwrober]

• QtVersionChecks

Adding this does not resolve the clang-tidy check error message in helpdata.cpp

[jwrober]

Still need to look at LUALIB_API. Tests prolly need to be excluded from further checks.