librustc: Disallow "unsafe" for external functions

src/test/bench/noise.rs

@@ -119,7 +119,7 @@ fn main() {
 
     foreach y in range(0, 256) {
         foreach x in range(0, 256) {
-            print((symbols[pixels[y*256+x] / 0.2f32) as int]);
+            print(symbols[(pixels[y*256+x] / 0.2f32) as int]);
         }
         println("");
     }

src/test/compile-fail/foreign-unsafe-fn-called.rs

@@ -13,7 +13,7 @@
 mod test {
     #[abi = "cdecl"]
     extern {
-        pub unsafe fn free();
+        pub fn free();
     }
 }
 

src/test/run-pass/extern-pub.rs

@@ -1,5 +1,5 @@
 extern {
-    pub unsafe fn free(p: *u8);
+    pub fn free(p: *u8);
 }
 
 pub fn main() {