Docking: amend to allow localizing docking specific user facing string. (#5895)

imgui.cpp

@@ -4964,6 +4964,7 @@ static const ImGuiLocEntry GLocalizationEntriesEnUS[] =
     { ImGuiLocKey_WindowingMainMenuBar, "(Main menu bar)"                       },
     { ImGuiLocKey_WindowingPopup,       "(Popup)"                               },
     { ImGuiLocKey_WindowingUntitled,    "(Untitled)"                            },
+    { ImGuiLocKey_DockingHideTabBar,    "Hide tab bar###HideTabBar"             },
 };
 
 void ImGui::Initialize()
@@ -12357,7 +12358,7 @@ static const char* GetFallbackWindowNameForWindowingList(ImGuiWindow* window)
     if ((window->Flags & ImGuiWindowFlags_MenuBar) && strcmp(window->Name, "##MainMenuBar") == 0)
         return ImGui::LocalizeGetMsg(ImGuiLocKey_WindowingMainMenuBar);
     if (window->DockNodeAsHost)
-        return "(Dock node)";
+        return "(Dock node)"; // Not normally shown to user.
     return ImGui::LocalizeGetMsg(ImGuiLocKey_WindowingUntitled);
 }
 
@@ -15946,7 +15947,7 @@ static ImGuiID ImGui::DockNodeUpdateWindowMenu(ImGuiDockNode* node, ImGuiTabBar*
         node->IsFocused = true;
         if (tab_bar->Tabs.Size == 1)
         {
-            if (MenuItem("Hide tab bar", NULL, node->IsHiddenTabBar()))
+            if (MenuItem(LocalizeGetMsg(ImGuiLocKey_DockingHideTabBar), NULL, node->IsHiddenTabBar()))
                 node->WantHiddenTabBarToggle = true;
         }
         else

imgui_internal.h

@@ -1802,6 +1802,7 @@ enum ImGuiLocKey : int
     ImGuiLocKey_WindowingMainMenuBar,
     ImGuiLocKey_WindowingPopup,
     ImGuiLocKey_WindowingUntitled,
+    ImGuiLocKey_DockingHideTabBar,
     ImGuiLocKey_COUNT
 };