Move macros above Stepper::babystep

Marlin/stepper.cpp

@@ -1108,10 +1108,6 @@ void Stepper::report_positions() {
 
 #if ENABLED(BABYSTEPPING)
 
-  // MUST ONLY BE CALLED BY AN ISR,
-  // No other ISR should ever interrupt this!
-  void Stepper::babystep(const uint8_t axis, const bool direction) {
-
   #define _ENABLE(axis) enable_## axis()
   #define _READ_DIR(AXIS) AXIS ##_DIR_READ
   #define _INVERT_DIR(AXIS) INVERT_## AXIS ##_DIR
@@ -1127,6 +1123,10 @@ void Stepper::report_positions() {
       _APPLY_DIR(AXIS, old_pin); \
     }
 
+  // MUST ONLY BE CALLED BY AN ISR,
+  // No other ISR should ever interrupt this!
+  void Stepper::babystep(const uint8_t axis, const bool direction) {
+
     switch (axis) {
 
       case X_AXIS: