[XAM] Fixed assertion related to incorrect casting

This should fix crash in 12xxx dashboard while browsing achievements

- Fixed issue with invalid time being presented for some achievements
- Added stub for: XampWebInstrumentationSetProfileCounts

src/xenia/kernel/xam/xam_info.cc

@@ -747,6 +747,13 @@ void XamGetActiveDashAppInfo_entry(pointer_t<X_DASH_APP_INFO> dash_app) {
 }
 DECLARE_XAM_EXPORT1(XamGetActiveDashAppInfo, kNone, kImplemented);
 
+void XampWebInstrumentationSetProfileCounts_entry(dword_t live_profiles,
+                                                  dword_t local_profiles,
+                                                  dword_t adult_profiles,
+                                                  dword_t child_profiles) {}
+DECLARE_XAM_EXPORT1(XampWebInstrumentationSetProfileCounts, kUserProfiles,
+                    kStub);
+
 }  // namespace xam
 }  // namespace kernel
 }  // namespace xe

src/xenia/kernel/xam/xam_user.cc

@@ -560,7 +560,7 @@ dword_result_t XamUserCreateAchievementEnumerator_entry(
     requester_xuid = xuid;
   }
 
-  uint32_t title_id_ =
+  const uint32_t title_id_ =
       title_id ? static_cast<uint32_t>(title_id) : kernel_state()->title_id();
 
   const auto user_title_achievements =
@@ -569,10 +569,15 @@ dword_result_t XamUserCreateAchievementEnumerator_entry(
 
   if (!user_title_achievements.empty()) {
     for (const auto& entry : user_title_achievements) {
+      auto unlock_time = X_FILETIME();
+      if (entry.IsUnlocked() && entry.unlock_time.is_valid()) {
+        unlock_time = entry.unlock_time;
+      }
+
       auto item = AchievementDetails(
           entry.achievement_id, entry.achievement_name.c_str(),
           entry.unlocked_description.c_str(), entry.locked_description.c_str(),
-          entry.image_id, entry.gamerscore, entry.unlock_time, entry.flags);
+          entry.image_id, entry.gamerscore, unlock_time, entry.flags);
 
       e->AppendItem(item);
     }

src/xenia/kernel/xboxkrnl/xboxkrnl_strings.cc

@@ -412,7 +412,7 @@ int32_t format_core(PPCContext* ppc_context, FormatData& data, ArgList& args,
             start[0] = '\0';
 
             while (precision-- > 0 || value != 0) {
-              auto digit = (int32_t)(value % radix);
+              const auto digit = static_cast<uint64_t>(value) % radix;
               value /= radix;
               assert_true(digit < strlen(digits));
               *--start = digits[digit];