Auto merge of rust-lang#113843 - wesleywiser:replace_rustc_apfloat, r=pnkfelix

Replace in-tree `rustc_apfloat` with the new version of the crate

Replace the in-tree version of `rustc_apfloat` with the new version of the crate which has been correctly licensed. The new crate incorporates upstream changes from LLVM since the original port was done including many correctness fixes and has been extensively fuzz tested to validate correctness.

Fixes rust-lang#100233
Fixes rust-lang#102403
Fixes rust-lang#113407
Fixes rust-lang#113409
Fixes rust-lang#55993
Fixes rust-lang#93224
Closes rust-lang#93225
Closes rust-lang#109573

Author: bors

.reuse/dep5

@@ -38,11 +38,6 @@ Files: compiler/*
 Copyright: The Rust Project Developers (see https://thanks.rust-lang.org)
 License: MIT or Apache-2.0
 
-Files: compiler/rustc_apfloat/*
-Copyright: LLVM APFloat authors
-           The Rust Project Developers (see https://thanks.rust-lang.org)
-License: NCSA AND (MIT OR Apache-2.0)
-
 Files: compiler/rustc_codegen_cranelift/src/cranelift_native.rs
 Copyright: The Cranelift Project Developers
            The Rust Project Developers (see https://thanks.rust-lang.org)

Cargo.lock

@@ -3135,7 +3135,9 @@ dependencies = [
 
 [[package]]
 name = "rustc_apfloat"
-version = "0.0.0"
+version = "0.2.0+llvm-462a31f5a5ab"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "465187772033a5ee566f69fe008df03628fce549a0899aae76f0a0c2e34696be"
 dependencies = [
  "bitflags 1.3.2",
  "smallvec",
@@ -4725,9 +4727,9 @@ dependencies = [
 
 [[package]]
 name = "smallvec"
-version = "1.10.0"
+version = "1.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a507befe795404456341dfab10cef66ead4c041f62b8b11bbb92bffe5d0953e0"
+checksum = "62bb4feee49fdd9f707ef802e22365a35de4b7b299de4763d44bfea899442ff9"
 
 [[package]]
 name = "snap"