Auto merge of rust-lang#112212 - matthiaskrgr:rollup-e5ilgf0, r=matthiaskrgr

Rollup of 6 pull requests

Successful merges:

 - rust-lang#111647 (use c literals in compiler and library)
 - rust-lang#112165 (Rename `impl_defaultness` to `defaultness`)
 - rust-lang#112182 (CFI: Fix cfi with repr(transparent): transform_ty: unexpected Alias(Proj)
 - rust-lang#112189 (Debug-assert that closures and generators are made with the right number of substitutions)
 - rust-lang#112205 (Add rustdoc test for double-hyphen to dash doc comment conversion)
 - rust-lang#112206 (Fix typo in `std::cell` module docs)

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors

Cargo.lock

@@ -871,16 +871,6 @@ dependencies = [
  "typenum",
 ]
 
-[[package]]
-name = "cstr"
-version = "0.2.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c11a39d776a3b35896711da8a04dc1835169dcd36f710878187637314e47941b"
-dependencies = [
- "proc-macro2",
- "quote",
-]
-
 [[package]]
 name = "ctrlc"
 version = "3.3.1"
@@ -3179,7 +3169,6 @@ name = "rustc_codegen_llvm"
 version = "0.0.0"
 dependencies = [
  "bitflags",
- "cstr",
  "libc",
  "measureme",
  "object 0.31.1",

compiler/rustc_codegen_llvm/Cargo.toml

@@ -8,7 +8,6 @@ test = false
 
 [dependencies]
 bitflags = "1.0"
-cstr = "0.2"
 libc = "0.2"
 measureme = "10.0.0"
 object = { version = "0.31.1", default-features = false, features = [