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Add benchmark for projection caching issue#1153

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Mark-Simulacrum merged 1 commit intorust-lang:masterfrom
wesleywiser:projection_caching_issue
Jan 19, 2022
Merged

Add benchmark for projection caching issue#1153
Mark-Simulacrum merged 1 commit intorust-lang:masterfrom
wesleywiser:projection_caching_issue

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Adds a benchmark that reproduces the slowdown fixed in rust-lang/rust#89831.

Prior to rust-lang/rust#89831, this benchmark takes over 30 minutes to compile. After that PR, it takes ~1 second.

Fixes #1124

@Mark-Simulacrum Mark-Simulacrum merged commit ab534f2 into rust-lang:master Jan 19, 2022
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Add minimized version of projection caching example

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