[compiler-rt] Reland "[scudo] Store more blocks in each TransferBatch" (#83078) (PR #83081)

[via llvm-commits]

ChiaHungDuan wrote:

> @ChiaHungDuan one of our internal gcc-based builders fails after your commit with this error:
> 
> ```
> compiler-rt/lib/scudo/standalone/wrappers_c.inc:61:68:   required from here
> compiler-rt/lib/scudo/standalone/allocator_common.h:56:11: error: conversion from ‘int’ to ‘scudo::u16’ {aka ‘short unsigned int’} may change value [-Werror=conversion]
>    56 |     Count -= N;
>       |     ~~~~~~^~~~
> cc1plus: some warnings being treated as errors
> ```
> 
> Can you take a look?

Thanks for letting me know. Here's the fix https://github.com/llvm/llvm-project/pull/83355

https://github.com/llvm/llvm-project/pull/83081