Reenable the assertion failure handler

Originally committed to SVN as r6053.

aegisub/src/main.cpp

@@ -154,11 +154,11 @@ void SetThreadName(DWORD dwThreadID, LPCSTR szThreadName) {
 /// @param func Function name
 /// @param cond Condition
 /// @param msg  Message
-static void wxAssertHandler(const wxString &file, int line, const wxString &func, const wxString &cond, const wxString &msg) {
+void AegisubApp::OnAssertFailure(const wxChar *file, int line, const wxChar *func, const wxChar *cond, const wxChar *msg) {
 	LOG_A("wx/assert") << file << ":" << line << ":" << func << "() " << cond << ": " << msg;
+	wxApp::OnAssertFailure(file, line, func, cond, msg);
 }
 
-
 /// @brief Gets called when application starts.
 /// @return bool
 bool AegisubApp::OnInit() {

aegisub/src/main.h

@@ -114,6 +114,14 @@ class AegisubApp: public wxApp {
 	void OnFatalException();
 #endif
 
+	/// @brief Handle wx assertions and redirect to the logging system.
+	/// @param file File name
+	/// @param line Line number
+	/// @param func Function name
+	/// @param cond Condition
+	/// @param msg  Message
+	void OnAssertFailure(const wxChar *file, int line, const wxChar *func, const wxChar *cond, const wxChar *msg);
+
 	// This function wraps all event handler calls anywhere in the application and is
 	// our ticket to catch exceptions happening in event handlers.
 	void HandleEvent(wxEvtHandler *handler, wxEventFunction func, wxEvent& event) const;