[webview_flutter] Crash when the app language is C++

[swift-kim]

How to reproduce:

1. Change the example app language to C++ (flutter-tizen create --tizen-language cpp).
2. Build and run the app on mobile/wearable.
   • Make sure the app is launched without a loader process, i.e. app_launcher -e.
3. Scroll the page to the bottom.
4. The app crashes.

Thread 19 "runner" received signal SIGSEGV, Segmentation fault.
[Switching to LWP 12862]
0xb5b253b2 in TT_RunIns () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/libflutter_engine.so
(gdb) bt
#0  0xb5b253b2 in TT_RunIns () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/libflutter_engine.so
#1  0xb2288d33 in ?? () from target:/lib/libfreetype.so.6
#2  0xb2288f5a in ?? () from target:/lib/libfreetype.so.6
#3  0xb226d7d5 in FT_Load_Glyph () from target:/lib/libfreetype.so.6
#4  0xb3390370 in ?? () from target:/lib/libcairo.so.2
#5  0xb332eebf in ?? () from target:/lib/libcairo.so.2
#6  0xb333015f in ?? () from target:/lib/libcairo.so.2
#7  0xb32e21a1 in ?? () from target:/lib/libcairo.so.2
#8  0xb32e30f8 in ?? () from target:/lib/libcairo.so.2
#9  0xb32f9536 in ?? () from target:/lib/libcairo.so.2
#10 0xb33389f3 in ?? () from target:/lib/libcairo.so.2
#11 0xb32ee6a7 in ?? () from target:/lib/libcairo.so.2
#12 0xb32dbc4e in cairo_show_glyphs () from target:/lib/libcairo.so.2
#13 0xb3816246 in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#14 0xb3966abe in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#15 0xb3817c6c in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#16 0xb36eb934 in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#17 0xb39195a2 in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#18 0xb36b9fd7 in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#19 0xb36c7dbf in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#20 0xb36bb52c in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#21 0xb3919ccf in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#22 0xb36b9fd7 in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#23 0xb36c81ea in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#24 0xb36bb52c in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#25 0xb36c7f08 in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#26 0xb36bb52c in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#27 0xb36c7f08 in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#28 0xb36bb52c in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#29 0xb36c7dbf in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#30 0xb36bb52c in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#31 0xb36c7f08 in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#32 0xb36bb52c in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#33 0xb36b9c5c in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#34 0xb3734632 in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#35 0xb388995a in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#36 0xb38afa61 in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#37 0xb383e7fa in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#38 0xb3836cab in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#39 0xb3972678 in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#40 0xb33fe553 in uv.run_timers () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/libtuv.so
#41 0xb33f6683 in uv_run () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/libtuv.so
#42 0xb383d7b6 in ?? () from target:/opt/usr/globalapps/org.tizen.webview_flutter_tizen_example/bin/../lib/liblightweight-web-engine.flutter.so
#43 0xb3f90f4c in ?? () from target:/lib/libpthread.so.0
#44 0xb7685af6 in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:108

This is an issue with the Flutter engine binary which is closely related to flutter-tizen/engine#58. I'll prepare a fix soon.