Update proc-macro-error to proc-macro-error2

Summary: The `proc-macro-error` crate is unmaintained and only compatible with syn 1. `proc-macro-error2` supports syn 2.

Reviewed By: cjlongoria

Differential Revision: D93949190

fbshipit-source-id: a915f13147571c2fb664e3b23454118211826820

Author: David Tolnay

hphp/hack/src/Cargo.lock

@@ -55,9 +55,9 @@ type TokenIter = std::iter::Peekable<IntoIter>;
 /// patterns translate into.
 #[cfg(not(test))]
 #[proc_macro]
-#[proc_macro_error::proc_macro_error]
+#[proc_macro_error2::proc_macro_error]
 pub fn parse(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
-    use proc_macro_error::abort;
+    use proc_macro_error2::abort;
     let input = TokenStream::from(input);
     let res = match parse_macro(input) {
         Ok(res) => res,
@@ -760,8 +760,8 @@ impl MyTokenIter for TokenIter {
         if let Some(t) = self.peek() {
             Ok(t)
         } else {
-            proc_macro_error::Diagnostic::new(
-                proc_macro_error::Level::Error,
+            proc_macro_error2::Diagnostic::new(
+                proc_macro_error2::Level::Error,
                 "Token expected at end".into(),
             )
             .abort();

hphp/hack/src/hackc/assemble/parse_macro.rs

@@ -14,6 +14,6 @@ doctest = false
 proc-macro = true
 
 [dependencies]
-proc-macro-error = "1.0"
+proc-macro-error2 = "2.0.1"
 proc-macro2 = { version = "1.0.106", features = ["span-locations"] }
 quote = "1.0.44"

hphp/hack/src/hackc/cargo/parse_macro/Cargo.toml

@@ -52,9 +52,9 @@ type TokenIter = std::iter::Peekable<IntoIter>;
 /// patterns translate into.
 #[cfg(not(test))]
 #[proc_macro]
-#[proc_macro_error::proc_macro_error]
+#[proc_macro_error2::proc_macro_error]
 pub fn parse(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
-    use proc_macro_error::abort;
+    use proc_macro_error2::abort;
     let input = TokenStream::from(input);
     let res = match parse_macro(input) {
         Ok(res) => res,
@@ -730,8 +730,8 @@ impl MyTokenIter for TokenIter {
         if let Some(t) = self.peek() {
             Ok(t)
         } else {
-            proc_macro_error::Diagnostic::new(
-                proc_macro_error::Level::Error,
+            proc_macro_error2::Diagnostic::new(
+                proc_macro_error2::Level::Error,
                 "Token expected at end".into(),
             )
             .abort();

hphp/hack/src/hackc/ir/assemble/parse_macro.rs

@@ -14,7 +14,7 @@ doctest = false
 proc-macro = true
 
 [dependencies]
-proc-macro-error = "1.0"
+proc-macro-error2 = "2.0.1"
 proc-macro2 = { version = "1.0.106", features = ["span-locations"] }
 quote = "1.0.44"