auto merge of #6487 : recrack/rust/vec_len, r=thestinger

Rename vec::len(var) to var.len()

```
libcore, libfuzzer, librustc, librustdoc, libstd, libsyntax
test/auxiliary
test/bench
test/run-pass
```

3 files changed, 3 insertions, 3 deletions

diff --git a/src/librustc/metadata/decoder.rs b/src/librustc/metadata/decoder.rs
index 48bfe209f1f..2592875cd57 100644
--- a/src/librustc/metadata/decoder.rs
+++ b/src/librustc/metadata/decoder.rs
@@ -1063,7 +1063,7 @@ fn get_attributes(md: ebml::Doc) -> ~[ast::attribute] {
             let meta_items = get_meta_items(attr_doc);
             // Currently it's only possible to have a single meta item on
             // an attribute
-            assert!((vec::len(meta_items) == 1u));
+            assert!(meta_items.len() == 1u);
             let meta_item = meta_items[0];
             attrs.push(
                 codemap::spanned {
diff --git a/src/librustc/metadata/loader.rs b/src/librustc/metadata/loader.rs
index ba2e336b639..cfb2bd4b837 100644
--- a/src/librustc/metadata/loader.rs
+++ b/src/librustc/metadata/loader.rs
@@ -171,7 +171,7 @@ pub fn metadata_matches(extern_metas: &[@ast::meta_item],
                         local_metas: &[@ast::meta_item]) -> bool {
 
     debug!("matching %u metadata requirements against %u items",
-           vec::len(local_metas), vec::len(extern_metas));
+           local_metas.len(), extern_metas.len());
 
     for local_metas.each |needed| {
         if !attr::contains(extern_metas, *needed) {
diff --git a/src/librustc/metadata/tydecode.rs b/src/librustc/metadata/tydecode.rs
index 5c82894c150..151ccad88ea 100644
--- a/src/librustc/metadata/tydecode.rs
+++ b/src/librustc/metadata/tydecode.rs
@@ -507,7 +507,7 @@ fn parse_sig(st: @mut PState, conv: conv_did) -> ty::FnSig {
 // Rust metadata parsing
 pub fn parse_def_id(buf: &[u8]) -> ast::def_id {
     let mut colon_idx = 0u;
-    let len = vec::len(buf);
+    let len = buf.len();
     while colon_idx < len && buf[colon_idx] != ':' as u8 { colon_idx += 1u; }
     if colon_idx == len {
         error!("didn't find ':' when parsing def id");