range(a, b).foo() -> (a..b).foo()

sed -i 's/ range(\([^,]*\), *\([^()]*\))\./ (\1\.\.\2)\./g' **/*.rs

src/test/run-make/unicode-input/span_length.rs

@@ -45,7 +45,7 @@ fn main() {
             let _ = write!(&mut File::create(&main_file).unwrap(),
                            "#![feature(non_ascii_idents)] fn main() {{ {} }}",
                            // random string of length n
-                           range(0, n).map(|_| random_char()).collect::<String>());
+                           (0..n).map(|_| random_char()).collect::<String>());
         }
 
         // rustc is passed to us with --out-dir and -L etc., so we