Bug 1855614 - Upgrade nsstring to bitflags 2. r=emilio

Differential Revision: https://phabricator.services.mozilla.com/D189450

Cargo.lock

@@ -3941,7 +3941,7 @@ source = "git+https://github.com/mozilla/application-services?rev=1a59041d0c7d36
 name = "nsstring"
 version = "0.1.0"
 dependencies = [
- "bitflags 1.999.999",
+ "bitflags 2.4.0",
  "encoding_rs",
 ]
 

xpcom/rust/nsstring/Cargo.toml

@@ -10,5 +10,5 @@ edition = "2018"
 gecko_debug = []
 
 [dependencies]
-bitflags = "1.0"
+bitflags = "2"
 encoding_rs = "0.8.0"

xpcom/rust/nsstring/src/lib.rs

@@ -157,6 +157,7 @@ bitflags! {
     // While this has the same layout as u16, it cannot be passed
     // over FFI safely as a u16.
     #[repr(C)]
+    #[derive(Debug, Copy, PartialEq, Eq, Clone, PartialOrd, Ord, Hash)]
     struct DataFlags: u16 {
         const TERMINATED = 1 << 0; // IsTerminated returns true
         const VOIDED = 1 << 1; // IsVoid returns true
@@ -172,6 +173,7 @@ bitflags! {
     // While this has the same layout as u16, it cannot be passed
     // over FFI safely as a u16.
     #[repr(C)]
+    #[derive(Debug, Copy, PartialEq, Eq, Clone, PartialOrd, Ord, Hash)]
     struct ClassFlags: u16 {
         const INLINE = 1 << 0; // |this|'s buffer is inline
         const NULL_TERMINATED = 1 << 1; // |this| requires its buffer is null-terminated