Auto merge of #100920 - Dylan-DPC:rollup-vlcw3sr, r=Dylan-DPC

Rollup of 9 pull requests

Successful merges:

 - #99249 (Do not re-parse function signatures to suggest generics)
 - #100309 (Extend comma suggestion to cases where fields arent missing)
 - #100368 (InferCtxt tainted_by_errors_flag should be Option<ErrorGuaranteed>)
 - #100768 (Migrate `rustc_plugin_impl` to `SessionDiagnostic`)
 - #100835 (net listen backlog update, follow-up from #97963.)
 - #100851 (Fix rustc_parse_format precision & width spans)
 - #100857 (Refactor query modifier parsing)
 - #100907 (Fix typo in UnreachableProp)
 - #100909 (Minor `ast::LitKind` improvements)

Failed merges:

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

1 files changed, 20 insertions, 0 deletions

diff --git a/compiler/rustc_plugin_impl/src/errors.rs b/compiler/rustc_plugin_impl/src/errors.rs
new file mode 100644
index 00000000000..2bdb6e4feca
--- /dev/null
+++ b/compiler/rustc_plugin_impl/src/errors.rs
@@ -0,0 +1,20 @@
+//! Errors emitted by plugin_impl
+
+use rustc_macros::SessionDiagnostic;
+use rustc_span::Span;
+
+#[derive(SessionDiagnostic)]
+#[diag(plugin_impl::load_plugin_error)]
+pub struct LoadPluginError {
+    #[primary_span]
+    pub span: Span,
+    pub msg: String,
+}
+
+#[derive(SessionDiagnostic)]
+#[diag(plugin_impl::malformed_plugin_attribute, code = "E0498")]
+pub struct MalformedPluginAttribute {
+    #[primary_span]
+    #[label]
+    pub span: Span,
+}