From 8081e3cbc7f8b6af71dcbb88a12f6431b8be67be Mon Sep 17 00:00:00 2001
From: Matthew Borkowski <matthew.h.borkowski@gmail.com>
Date: Tue, 26 Oct 2021 18:21:29 -0400
Subject: [PATCH] astgen.zig: don't add scopes for extern functions params as
 they may shadow other names

---
 src/AstGen.zig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/AstGen.zig b/src/AstGen.zig
index 3fd3da6bb6..509880ec95 100644
--- a/src/AstGen.zig
+++ b/src/AstGen.zig
@@ -3147,7 +3147,7 @@ fn fnDecl(
                 break :param indexToRef(param_inst);
             };
 
-            if (param_name == 0) continue;
+            if (param_name == 0 or is_extern) continue;
 
             const sub_scope = try astgen.arena.create(Scope.LocalVal);
             sub_scope.* = .{