Minor fixes and debug helpers to track externs.

src/xenia/kernel/xboxkrnl/xboxkrnl_misc.cc

@@ -27,6 +27,7 @@ namespace xboxkrnl {
 
 void xeKeBugCheckEx(uint32_t code, uint32_t param1, uint32_t param2, uint32_t param3, uint32_t param4) {
   XELOGD("*** STOP: 0x%.8X (0x%.8X, 0x%.8X, 0x%.8X, 0x%.8X)", code, param1, param2, param3, param4);
+  fflush(stdout);
   DebugBreak();
   XEASSERTALWAYS();
 }

src/xenia/kernel/xex2.cc

@@ -931,6 +931,8 @@ int xe_xex2_get_import_infos(xe_xex2_ref xex,
       info_count * sizeof(xe_xex2_import_info_t));
   XEEXPECTNOTNULL(infos);
 
+  XEASSERTNOTZERO(info_count);
+
   // Construct infos.
   for (size_t n = 0, i = 0; n < library->record_count; n++) {
     const uint32_t record = library->records[n];