debuginfo: Don't create debuginfo for statics inlined from other crates.

Fixes issue #13213, that is linker errors when the inlined static has been optimized out of the exporting crate.

src/librustc/middle/trans/debuginfo.rs

@@ -293,6 +293,13 @@ pub fn create_global_var_metadata(cx: &CrateContext,
         return;
     }
 
+    // Don't create debuginfo for globals inlined from other crates. The other crate should already
+    // contain debuginfo for it. More importantly, the global might not even exist in un-inlined
+    // form anywhere which would lead to a linker errors.
+    if cx.external_srcs.borrow().contains_key(&node_id) {
+        return;
+    }
+
     let var_item = cx.tcx.map.get(node_id);
 
     let (ident, span) = match var_item {

src/test/auxiliary/issue13213aux.rs

@@ -0,0 +1,27 @@
+// Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![crate_type = "lib"]
+// compile-flags:-g
+
+pub use private::P;
+
+pub struct S {
+    p: P,
+}
+
+mod private {
+    pub struct P {
+        p: i32,
+    }
+    pub static THREE: P = P { p: 3 };
+}
+
+pub static A: S = S { p: private::THREE };

src/test/debug-info/issue13213.rs

@@ -0,0 +1,26 @@
+// Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// ignore-android: FIXME(#10381)
+
+// aux-build:issue13213aux.rs
+extern crate issue13213aux;
+
+// compile-flags:-g
+
+// This tests make sure that we get no linker error when using a completely inlined static. Some
+// statics that are marked with AvailableExternallyLinkage in the importing crate, may actually not
+// be available because they have been optimized out from the exporting crate.
+fn main() {
+    let b: issue13213aux::S = issue13213aux::A;
+    zzz();
+}
+
+fn zzz() {()}