Debug Tools: Item Picker: remove IMGUI_DEBUG_TOOL_ITEM_PICKER_EX since it doesn't work on non-ItemHoverable() items anyway. (#2673)

Call stack difference not meaningful.

imconfig.h

@@ -108,11 +108,6 @@
 //#define IM_DEBUG_BREAK  IM_ASSERT(0)
 //#define IM_DEBUG_BREAK  __debugbreak()
 
-//---- Debug Tools: Have the Item Picker break in the ItemAdd() function instead of ItemHoverable(),
-// (which comes earlier in the code, will catch a few extra items, allow picking items other than Hovered one.)
-// This adds a small runtime cost which is why it is not enabled by default.
-//#define IMGUI_DEBUG_TOOL_ITEM_PICKER_EX
-
 //---- Debug Tools: Enable slower asserts
 //#define IMGUI_DEBUG_PARANOID
 

imgui.cpp

@@ -3716,8 +3716,7 @@ bool ImGui::ItemHoverable(const ImRect& bb, ImGuiID id)
         // [DEBUG] Item Picker tool!
         // We perform the check here because SetHoveredID() is not frequently called (1~ time a frame), making
         // the cost of this tool near-zero. We can get slightly better call-stack and support picking non-hovered
-        // items if we perform the test in ItemAdd(), but that would incur a small runtime cost.
-        // #define IMGUI_DEBUG_TOOL_ITEM_PICKER_EX in imconfig.h if you want this check to also be performed in ItemAdd().
+        // items if we performed the test in ItemAdd(), but that would incur a small runtime cost.
         if (g.DebugItemPickerActive && g.HoveredIdPreviousFrame == id)
             GetForegroundDrawList()->AddRect(bb.Min, bb.Max, IM_COL32(255, 255, 0, 255));
         if (g.DebugItemPickerBreakId == id)
@@ -8646,15 +8645,6 @@ bool ImGui::ItemAdd(const ImRect& bb, ImGuiID id, const ImRect* nav_bb_arg, ImGu
         // Empty identifier are valid and useful in a small amount of cases, but 99.9% of the time you want to use "##something".
         // READ THE FAQ: https://dearimgui.org/faq
         IM_ASSERT(id != window->ID && "Cannot have an empty ID at the root of a window. If you need an empty label, use ## and read the FAQ about how the ID Stack works!");
-
-        // [DEBUG] Item Picker tool, when enabling the "extended" version we perform the check in ItemAdd()
-#ifdef IMGUI_DEBUG_TOOL_ITEM_PICKER_EX
-        if (id == g.DebugItemPickerBreakId)
-        {
-            IM_DEBUG_BREAK();
-            g.DebugItemPickerBreakId = 0;
-        }
-#endif
     }
     g.NextItemData.Flags = ImGuiNextItemDataFlags_None;
 
@@ -13421,7 +13411,7 @@ void ImGui::DebugNodeWindowsListByBeginStackParent(ImGuiWindow** windows, int wi
 }
 
 //-----------------------------------------------------------------------------
-// [SECTION] DEBUG LOG
+// [SECTION] DEBUG LOG WINDOW
 //-----------------------------------------------------------------------------
 
 void ImGui::DebugLog(const char* fmt, ...)