Tables: Fixed very small tables edge cases: inverted clip rect with freezing + scroll, missing borders.

imgui_tables.cpp

@@ -1010,7 +1010,7 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
         }
 
         if (visible_n < table->FreezeColumnsCount)
-            host_clip_rect.Min.x = ImMax(host_clip_rect.Min.x, column->MaxX + TABLE_BORDER_SIZE);
+            host_clip_rect.Min.x = ImClamp(column->MaxX + TABLE_BORDER_SIZE, host_clip_rect.Min.x, host_clip_rect.Max.x);
 
         offset_x += column->WidthGiven + table->CellSpacingX1 + table->CellSpacingX2 + table->CellPaddingX * 2.0f;
         visible_n++;
@@ -2344,7 +2344,7 @@ void ImGui::TableMergeDrawChannels(ImGuiTable* table)
 void ImGui::TableDrawBorders(ImGuiTable* table)
 {
     ImGuiWindow* inner_window = table->InnerWindow;
-    if (inner_window->Hidden || !table->HostClipRect.Overlaps(table->InnerClipRect))
+    if (!table->OuterWindow->ClipRect.Overlaps(table->OuterRect))
         return;
 
     ImDrawList* inner_drawlist = inner_window->DrawList;