Update the bitflags to 2.2.1. (#2512)

Author: qwandor

CHANGELOG.md

@@ -183,6 +183,7 @@
   properly generate module names and paths that include spaces by escaping
   them. To make the escaping clear and consistent, backslashes are also
   escaped.
+* Updated `bitflags` dependency to 2.2.1. This changes the API of `CodegenConfig`.
 
 ## Removed
 

Cargo.lock

@@ -25,7 +25,7 @@ name = "bindgen"
 path = "lib.rs"
 
 [dependencies]
-bitflags = "1.0.3"
+bitflags = "2.2.1"
 cexpr = "0.6"
 clang-sys = { version = "1", features = ["clang_6_0"] }
 lazycell = "1"

bindgen/Cargo.toml

@@ -126,6 +126,7 @@ fn root_import(
 }
 
 bitflags! {
+    #[derive(Copy, Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
     struct DerivableTraits: u16 {
         const DEBUG       = 1 << 0;
         const DEFAULT     = 1 << 1;

bindgen/codegen/mod.rs

@@ -109,6 +109,7 @@ fn args_are_cpp(clang_args: &[String]) -> bool {
 
 bitflags! {
     /// A type used to indicate which kind of items we have to generate.
+    #[derive(Copy, Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
     pub struct CodegenConfig: u32 {
         /// Whether to generate functions.
         const FUNCTIONS = 1 << 0;