fix stage0 build

Author: thestinger

src/libstd/util.rs

@@ -173,23 +173,26 @@ mod tests {
 
         // verify that `#[unsafe_no_drop_flag]` works as intended on a zero-size struct
 
-        static mut did_run: bool = false;
+        // NOTE: uncomment after snapshot, will not parse yet
+        //static mut did_run: bool = false;
 
         struct Foo { five: int }
 
         impl Drop for Foo {
             fn drop(&self) {
                 assert_eq!(self.five, 5);
-                unsafe {
-                    did_run = true;
-                }
+                // NOTE: uncomment after snapshot, will not parse yet
+                //unsafe {
+                    //did_run = true;
+                //}
             }
         }
 
         {
             let _a = (NonCopyable, Foo { five: 5 }, NonCopyable);
         }
 
-        unsafe { assert_eq!(did_run, true); }
+        // NOTE: uncomment after snapshot, will not parse yet
+        //unsafe { assert_eq!(did_run, true); }
     }
 }