Wip migrate out from proc macro error

Missing migration from `ToResponse`, `IntoResponses`, `axum_extras` and
`rocket_extras`.

Resolves #854

Author: juhaku

utoipa-gen/Cargo.toml

@@ -16,7 +16,7 @@ proc-macro = true
 proc-macro2 = "1.0"
 syn = { version = "2.0", features = ["full", "extra-traits"] }
 quote = "1.0"
-proc-macro-error = "1.0"
+# proc-macro-error = "1.0"
 regex = { version = "1.7", optional = true }
 uuid = { version = "1", features = ["serde"], optional = true }
 ulid = { version = "1", optional = true, default-features = false }

utoipa-gen/src/component.rs

@@ -1,7 +1,7 @@
 use std::borrow::Cow;
 
 use proc_macro2::{Ident, Span, TokenStream};
-use proc_macro_error::{abort, abort_call_site};
+// use proc_macro_error::{abort, abort_call_site};
 use quote::{quote, quote_spanned, ToTokens};
 use syn::spanned::Spanned;
 use syn::{Attribute, GenericArgument, Path, PathArguments, PathSegment, Type, TypePath};