Auto merge of #14136 - stshine:orthogonal-symmetry, r=SimonSapin

style: Add a "start_end()" method to LogicalMargin

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Add a `LogicalMargin::start_end()` method that receives a `Direction' parameter. This is useful for some layout that is symmetric in inline and block directions, like flexbox.

Part of #14123.

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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 #__ (github issue number if applicable).

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- [ ] There are tests for these changes OR
- [X] These changes do not require tests because refactoring

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r? @SimonSapin

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This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/14136)
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1 files changed, 2 insertions, 2 deletions

diff --git a/components/layout/fragment.rs b/components/layout/fragment.rs
index 2c193d09e41..a0f09dd5dd1 100644
--- a/components/layout/fragment.rs
+++ b/components/layout/fragment.rs
@@ -23,7 +23,7 @@ use inline::{InlineMetrics, LAST_FRAGMENT_OF_ELEMENT, LineMetrics};
 use ipc_channel::ipc::IpcSender;
 #[cfg(debug_assertions)]
 use layout_debug;
-use model::{self, Direction, IntrinsicISizes, IntrinsicISizesContribution, MaybeAuto};
+use model::{self, IntrinsicISizes, IntrinsicISizesContribution, MaybeAuto};
 use msg::constellation_msg::PipelineId;
 use net_traits::image::base::{Image, ImageMetadata};
 use net_traits::image_cache_thread::{ImageOrMetadataAvailable, UsePlaceholder};
@@ -44,7 +44,7 @@ use style::computed_values::{transform_style, vertical_align, white_space, word_
 use style::computed_values::content::ContentItem;
 use style::context::SharedStyleContext;
 use style::dom::TRestyleDamage;
-use style::logical_geometry::{LogicalMargin, LogicalRect, LogicalSize, WritingMode};
+use style::logical_geometry::{Direction, LogicalMargin, LogicalRect, LogicalSize, WritingMode};
 use style::properties::ServoComputedValues;
 use style::selector_impl::RestyleDamage;
 use style::servo::restyle_damage::RECONSTRUCT_FLOW;