Move some functions from `rustc_expand` to `rustc_builtin_macros`.

These functions are only used in `rustc_builtin_macros`, so it makes
sense for them to live there. This allows them to be changed from `pub`
to `pub(crate)`.

1 files changed, 23 insertions, 0 deletions

diff --git a/compiler/rustc_builtin_macros/src/errors.rs b/compiler/rustc_builtin_macros/src/errors.rs
index 6b6647ef085..055ff79a8ad 100644
--- a/compiler/rustc_builtin_macros/src/errors.rs
+++ b/compiler/rustc_builtin_macros/src/errors.rs
@@ -842,3 +842,26 @@ pub(crate) struct ExpectedRegisterClassOrExplicitRegister {
     #[primary_span]
     pub(crate) span: Span,
 }
+
+#[derive(Diagnostic)]
+#[diag(builtin_macros_expected_comma_in_list)]
+pub(crate) struct ExpectedCommaInList {
+    #[primary_span]
+    pub span: Span,
+}
+
+#[derive(Diagnostic)]
+#[diag(builtin_macros_only_one_argument)]
+pub(crate) struct OnlyOneArgument<'a> {
+    #[primary_span]
+    pub span: Span,
+    pub name: &'a str,
+}
+
+#[derive(Diagnostic)]
+#[diag(builtin_macros_takes_no_arguments)]
+pub(crate) struct TakesNoArguments<'a> {
+    #[primary_span]
+    pub span: Span,
+    pub name: &'a str,
+}