Add test for no_core statics

Author: oli-obk

src/test/ui/static_sized_requirement.rs

@@ -0,0 +1,12 @@
+// compile-pass
+
+#![feature(no_core, lang_items)]
+#![no_core]
+#![crate_type = "lib"]
+
+#[lang = "sized"]
+trait Sized {}
+
+extern {
+    pub static A: u32;
+}