Use bitflags to compress function properties

Very minor savings, only 1 MB or so

1 files changed, 1 insertions, 1 deletions

diff --git a/crates/hir_ty/src/diagnostics/decl_check.rs b/crates/hir_ty/src/diagnostics/decl_check.rs
index 33a0f4d7d..207c7cb82 100644
--- a/crates/hir_ty/src/diagnostics/decl_check.rs
+++ b/crates/hir_ty/src/diagnostics/decl_check.rs
@@ -91,7 +91,7 @@ impl<'a, 'b> DeclValidator<'a, 'b> {
 
     fn validate_func(&mut self, func: FunctionId) {
         let data = self.db.function_data(func);
-        if data.is_in_extern_block {
+        if data.is_in_extern_block() {
             cov_mark::hit!(extern_func_incorrect_case_ignored);
             return;
         }