Update Endstops class for 1.1.x parity

Marlin/src/module/endstops.cpp

 bool Endstops::enabled, Endstops::enabled_globally; // Initialized by settings.load()
 volatile char Endstops::endstop_hit_bits; // use X_MIN, Y_MIN, Z_MIN and Z_MIN_PROBE as BIT value
 
-#if ENABLED(X_DUAL_ENDSTOPS) || ENABLED(Y_DUAL_ENDSTOPS) || ENABLED(Z_DUAL_ENDSTOPS)
-  uint16_t
-#else
-  byte
-#endif
-    Endstops::current_endstop_bits = 0,
-    Endstops::old_endstop_bits = 0;
+Endstops::esbits_t Endstops::current_endstop_bits = 0,
+                   Endstops::old_endstop_bits = 0;
 
 #if HAS_BED_PROBE
   volatile bool Endstops::z_probe_enabled = false;
 #endif
 
+// Initialized by settings.load()
 #if ENABLED(X_DUAL_ENDSTOPS)
-  float Endstops::x_endstop_adj; // Initialized by settings.load()
+  float Endstops::x_endstop_adj;
 #endif
 #if ENABLED(Y_DUAL_ENDSTOPS)
-  float Endstops::y_endstop_adj; // Initialized by settings.load()
+  float Endstops::y_endstop_adj;
 #endif
 #if ENABLED(Z_DUAL_ENDSTOPS)
-  float Endstops::z_endstop_adj; // Initialized by settings.load()
+  float Endstops::z_endstop_adj;
 #endif
 
 /**
         _ENDSTOP_HIT(AXIS, MINMAX); \
         stepper.endstop_triggered(_AXIS(AXIS)); \
       } \
-    } while(0)
+    }while(0)
 
   #if ENABLED(G38_PROBE_TARGET) && PIN_EXISTS(Z_MIN_PROBE) && !(CORE_IS_XY || CORE_IS_XZ)
     // If G38 command is active check Z_MIN_PROBE for ALL movement
   /**
    * Check and update endstops according to conditions
    */
-
   if (X_MOVE_TEST) {
     if (stepper.motor_direction(X_AXIS_HEAD)) { // -direction
       #if HAS_X_MIN

Marlin/src/module/endstops.h

  */
 
 /**
- *  endstops.h - manages endstops
+ * endstops.h - manages endstops
  */
 
 #ifndef __ENDSTOPS_H__
     static bool enabled, enabled_globally;
     static volatile char endstop_hit_bits; // use X_MIN, Y_MIN, Z_MIN and Z_MIN_PROBE as BIT value
 
-    #if ENABLED(X_DUAL_ENDSTOPS)
-      static float x_endstop_adj;
-    #endif
-    #if ENABLED(Y_DUAL_ENDSTOPS)
-      static float y_endstop_adj;
-    #endif
-    #if ENABLED(Z_DUAL_ENDSTOPS)
-      static float z_endstop_adj;
-    #endif
     #if ENABLED(X_DUAL_ENDSTOPS) || ENABLED(Y_DUAL_ENDSTOPS) || ENABLED(Z_DUAL_ENDSTOPS)
       typedef uint16_t esbits_t;
+      #if ENABLED(X_DUAL_ENDSTOPS)
+        static float x_endstop_adj;
+      #endif
+      #if ENABLED(Y_DUAL_ENDSTOPS)
+        static float y_endstop_adj;
+      #endif
+      #if ENABLED(Z_DUAL_ENDSTOPS)
+        static float z_endstop_adj;
+      #endif
     #else
       typedef byte esbits_t;
     #endif
   #define ENDSTOPS_ENABLED  endstops.enabled
 #endif
 
-
 #endif // __ENDSTOPS_H__