Batch symbol interner lookups

[yotamofek]

Probably naive to think it'll affect perf, but I'm curious nonetheless

[yotamofek]

@bors try @rust-timer queue

[rust-bors]

☀️ Try build successful (CI)
Build commit: 78260c1 (78260c1490a63370a7eb3c99b61307a7b35a58bd, parent: 8188f6c8084bade919921457e011fa39c6bf09a4)

[rust-timer]

Finished benchmarking commit (78260c1): comparison URL.

Overall result: no relevant changes - no action needed

Benchmarking this pull request means it may be perf-sensitive – we'll automatically label it not fit for rolling up. You can override this, but we strongly advise not to, due to possible changes in compiler perf.

@bors rollup=never
@rustbot label: -S-waiting-on-perf -perf-regression

Instruction count

This benchmark run did not return any relevant results for this metric.

Max RSS (memory usage)

Results (primary 1.3%)

A less reliable metric. May be of interest, but not used to determine the overall result above.

	mean	range	count
Regressions ❌ (primary)	1.3%	[1.3%, 1.3%]	1
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	1.3%	[1.3%, 1.3%]	1

Cycles

This benchmark run did not return any relevant results for this metric.

Binary size

This benchmark run did not return any relevant results for this metric.

Bootstrap: 472.396s -> 472.346s (-0.01%)
Artifact size: 389.24 MiB -> 389.24 MiB (-0.00%)