vec: remove BaseIter implementation

I removed the `static-method-test.rs` test because it was heavily based
on `BaseIter` and there are plenty of other more complex uses of static
methods anyway.

src/libsyntax/codemap.rs

@@ -422,7 +422,7 @@ impl CodeMap {
     }
 
     pub fn get_filemap(&self, filename: &str) -> @FileMap {
-        for self.files.each |fm| { if filename == fm.name { return *fm; } }
+        for self.files.iter().advance |fm| { if filename == fm.name { return *fm; } }
         //XXjdm the following triggers a mismatched type bug
         //      (or expected function, found _|_)
         fail!(); // ("asking for " + filename + " which we don't know about");
@@ -508,7 +508,7 @@ impl CodeMap {
         // The number of extra bytes due to multibyte chars in the FileMap
         let mut total_extra_bytes = 0;
 
-        for map.multibyte_chars.each |mbc| {
+        for map.multibyte_chars.iter().advance |mbc| {
             debug!("codemap: %?-byte char at %?", mbc.bytes, mbc.pos);
             if mbc.pos < bpos {
                 total_extra_bytes += mbc.bytes;