Auto merge of #18506 - mrobinson:position-sticky-table, r=emilio

Fix issues with the combination of position:sticky and tables

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- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [ ] These changes fix #18441 (github issue number if applicable).

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components/layout/table.rs

@@ -11,7 +11,7 @@ use block::{BlockFlow, CandidateBSizeIterator, ISizeAndMarginsComputer};
 use block::{ISizeConstraintInput, ISizeConstraintSolution};
 use context::LayoutContext;
 use display_list_builder::{BlockFlowDisplayListBuilding, BorderPaintingMode};
-use display_list_builder::{DisplayListBuildState, EstablishContainingBlock};
+use display_list_builder::{DisplayListBuildState, StackingContextCollectionFlags};
 use display_list_builder::StackingContextCollectionState;
 use euclid::Point2D;
 use flow;
@@ -500,7 +500,8 @@ impl Flow for TableFlow {
     }
 
     fn collect_stacking_contexts(&mut self, state: &mut StackingContextCollectionState) {
-        self.block_flow.collect_stacking_contexts_for_block(state, EstablishContainingBlock::Yes);
+        self.block_flow.collect_stacking_contexts_for_block(state,
+                                                            StackingContextCollectionFlags::empty());
     }
 
     fn repair_style(&mut self, new_style: &::ServoArc<ComputedValues>) {