Use PGM serial strings

Marlin/src/feature/runout.cpp

 #endif
 
 #if ENABLED(TOOLCHANGE_MIGRATION_FEATURE)
-  //#define DEBUG_TOOLCHANGE_MIGRATION_FEATURE
   #include "../module/tool_change.h"
+  #define DEBUG_OUT ENABLED(DEBUG_TOOLCHANGE_MIGRATION_FEATURE)
+  #include "../core/debug_out.h"
 #endif
 
 #if HAS_FILAMENT_RUNOUT_DISTANCE
 
   #if ENABLED(TOOLCHANGE_MIGRATION_FEATURE)
     if (migration.in_progress) {
-      #if ENABLED(DEBUG_TOOLCHANGE_MIGRATION_FEATURE)
-        SERIAL_ECHOLN("Migration Already In Progress");
-      #endif
+      DEBUG_ECHOLNPGM("Migration Already In Progress");
       return;  // Action already in progress. Purge triggered repeated runout.
     }
     if (migration.automode) {
-      #if ENABLED(DEBUG_TOOLCHANGE_MIGRATION_FEATURE)
-        SERIAL_ECHOLN("Migration Starting");
-      #endif
+      DEBUG_ECHOLNPGM("Migration Starting");
       if (extruder_migration()) return;
     }
   #endif
     if (run_runout_script
       && ( strstr(FILAMENT_RUNOUT_SCRIPT, "M600")
         || strstr(FILAMENT_RUNOUT_SCRIPT, "M125")
-        #if ENABLED(ADVANCED_PAUSE_FEATURE)
-          || strstr(FILAMENT_RUNOUT_SCRIPT, "M25")
-        #endif
+        || TERN0(ADVANCED_PAUSE_FEATURE, strstr(FILAMENT_RUNOUT_SCRIPT, "M25"))
       )
     ) {
       host_action_paused(false);

Marlin/src/gcode/gcode.cpp

           case 511: M511(); break;                                // M511: Unlock Printer
         #endif
         #if ENABLED(PASSWORD_CHANGE_GCODE)
-          case 512: M512(); break;
-        #endif                                                    // M512: Set/Change/Remove Password
+          case 512: M512(); break;                                // M512: Set/Change/Remove Password
+        #endif
       #endif
 
       #if ENABLED(SDSUPPORT)

Marlin/src/lcd/extui/lib/anycubic_chiron/chiron_tft.cpp

   void ChironTFT::SendtoTFTLN(PGM_P str = nullptr) {
     if (str != nullptr) {
       #if ACDEBUG(AC_SOME)
-        SERIAL_ECHO("> ");
+        SERIAL_ECHOPGM("> ");
       #endif
       SendtoTFT(str);
       #if ACDEBUG(AC_SOME)

Marlin/src/lcd/tft/touch.cpp

             }
 
             if (calibration_state == CALIBRATION_SUCCESS) {
-              SERIAL_ECHOLN("Touch screen calibration completed");
+              SERIAL_ECHOLNPGM("Touch screen calibration completed");
               SERIAL_ECHOLNPAIR("TOUCH_CALIBRATION_X ", calibration.x);
               SERIAL_ECHOLNPAIR("TOUCH_CALIBRATION_Y ", calibration.y);
               SERIAL_ECHOLNPAIR("TOUCH_OFFSET_X ", calibration.offset_x);
               SERIAL_ECHOLNPAIR("TOUCH_OFFSET_Y ", calibration.offset_y);
-              SERIAL_ECHO("TOUCH_ORIENTATION "); if (calibration.orientation == TOUCH_LANDSCAPE) SERIAL_ECHOLN("TOUCH_LANDSCAPE"); else SERIAL_ECHOLN("TOUCH_PORTRAIT");
+              SERIAL_ECHOPGM("TOUCH_ORIENTATION "); if (calibration.orientation == TOUCH_LANDSCAPE) SERIAL_ECHOLNPGM("TOUCH_LANDSCAPE"); else SERIAL_ECHOLNPGM("TOUCH_PORTRAIT");
             }
             break;
           default: break;

Marlin/src/module/tool_change.cpp

 
 #if ENABLED(TOOLCHANGE_MIGRATION_FEATURE)
 
+  #define DEBUG_OUT ENABLED(DEBUG_TOOLCHANGE_MIGRATION_FEATURE)
+  #include "../core/debug_out.h"
+
   bool extruder_migration() {
 
     #if ENABLED(PREVENT_COLD_EXTRUSION)
       if (thermalManager.targetTooColdToExtrude(active_extruder)) {
-        #if ENABLED(DEBUG_TOOLCHANGE_MIGRATION_FEATURE)
-          SERIAL_ECHOLN("Migration Source Too Cold");
-        #endif
+        DEBUG_ECHOLNPGM("Migration Source Too Cold");
         return false;
       }
     #endif
 
     // No auto-migration or specified target?
     if (!migration.target && active_extruder >= migration.last) {
-      #if ENABLED(DEBUG_TOOLCHANGE_MIGRATION_FEATURE)
-        SERIAL_ECHO_MSG("No Migration Target");
-        SERIAL_ECHO_MSG("Target: ", migration.target,
-                        " Last: ", migration.last,
-                        " Active: ", active_extruder);
-      #endif
+      DEBUG_ECHO_MSG("No Migration Target");
+      DEBUG_ECHO_MSG("Target: ", migration.target, " Last: ", migration.last, " Active: ", active_extruder);
       migration.automode = false;
       return false;
     }
     uint8_t migration_extruder = active_extruder;
 
     if (migration.target) {
-      #if ENABLED(DEBUG_TOOLCHANGE_MIGRATION_FEATURE)
-        SERIAL_ECHOLN("Migration using fixed target");
-      #endif
+      DEBUG_ECHOLNPGM("Migration using fixed target");
       // Specified target ok?
       const int16_t t = migration.target - 1;
       if (t != active_extruder) migration_extruder = t;
       migration_extruder++;
 
     if (migration_extruder == active_extruder) {
-      #if ENABLED(DEBUG_TOOLCHANGE_MIGRATION_FEATURE)
-        SERIAL_ECHOLN("Migration source matches active");
-      #endif
+      DEBUG_ECHOLNPGM("Migration source matches active");
       return false;
     }
 
     // Migration begins
-    #if ENABLED(DEBUG_TOOLCHANGE_MIGRATION_FEATURE)
-      SERIAL_ECHOLN("Beginning migration");
-    #endif
+    DEBUG_ECHOLNPGM("Beginning migration");
 
     migration.in_progress = true; // Prevent runout script
     planner.synchronize();
 
     planner.synchronize();
     planner.set_e_position_mm(current_position.e); // New extruder primed and ready
-    #if ENABLED(DEBUG_TOOLCHANGE_MIGRATION_FEATURE)
-      SERIAL_ECHOLN("Migration Complete");
-    #endif
+    DEBUG_ECHOLNPGM("Migration Complete");
     return true;
   }
 

Marlin/src/module/tool_change.h

 #include "../inc/MarlinConfigPre.h"
 #include "../core/types.h"
 
+//#define DEBUG_TOOLCHANGE_MIGRATION_FEATURE
+
 #if HAS_MULTI_EXTRUDER
 
   typedef struct {