sts: add STS_UNREACHABLE_DEFAULT_CASE()

stratosphere/pm/source/boot2/boot2_api.cpp

@@ -144,14 +144,9 @@ namespace sts::boot2 {
 
             switch (pm::shell::LaunchTitle(&process_id, loc, launch_flags)) {
                 case ResultKernelResourceExhausted:
-                    /* Out of resource! */
-                    std::abort();
                 case ResultKernelOutOfMemory:
-                    /* Out of memory! */
-                    std::abort();
                 case ResultKernelLimitReached:
-                    /* Limit Reached! */
-                    std::abort();
+                    STS_ASSERT(false);
                 default:
                     /* We don't care about other issues. */
                     break;

stratosphere/pm/source/impl/pm_process_manager.cpp

@@ -134,8 +134,7 @@ namespace sts::pm::impl {
                     return static_cast<u32>(ProcessEventDeprecated::DebugRunning);
                 case ProcessEvent::DebugSuspended:
                     return static_cast<u32>(ProcessEventDeprecated::DebugSuspended);
-                default:
-                    std::abort();
+                STS_UNREACHABLE_DEFAULT_CASE();
             }
         }