servo: Merge #11329 - Report use statements that use {} with only one entry (from c-rhodes:11320); r=jdm

Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data:
- [X ] `./mach build -d` does not report any errors
- [X ] `./mach test-tidy --faster` does not report any errors
- [X ] These changes fix #11320  (github issue number if applicable).

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

Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process.

Source-Repo: https://github.com/servo/servo
Source-Revision: 2f9796fa696e9514280777398467696dd4f004b3

servo/components/layout/construct.rs

@@ -22,11 +22,11 @@ use floats::FloatKind;
 use flow::{MutableFlowUtils, MutableOwnedFlowUtils, CAN_BE_FRAGMENTED};
 use flow::{self, AbsoluteDescendants, IS_ABSOLUTELY_POSITIONED, ImmutableFlowUtils};
 use flow_ref::{self, FlowRef};
+use fragment::WhitespaceStrippingResult;
 use fragment::{CanvasFragmentInfo, ImageFragmentInfo, InlineAbsoluteFragmentInfo};
 use fragment::{Fragment, GeneratedContentInfo, IframeFragmentInfo};
 use fragment::{InlineAbsoluteHypotheticalFragmentInfo, TableColumnFragmentInfo};
 use fragment::{InlineBlockFragmentInfo, SpecificFragmentInfo, UnscannedTextFragmentInfo};
-use fragment::{WhitespaceStrippingResult};
 use gfx::display_list::OpaqueNode;
 use incremental::{BUBBLE_ISIZES, RECONSTRUCT_FLOW, RestyleDamage};
 use inline::{FIRST_FRAGMENT_OF_ELEMENT, InlineFlow, InlineFragmentNodeFlags};
@@ -44,8 +44,8 @@ use std::mem;
 use std::sync::Arc;
 use std::sync::atomic::Ordering;
 use style::computed_values::content::ContentItem;
+use style::computed_values::position;
 use style::computed_values::{caption_side, display, empty_cells, float, list_style_position};
-use style::computed_values::{position};
 use style::properties::{self, ComputedValues, ServoComputedValues};
 use style::servo::SharedStyleContext;
 use table::TableFlow;