rollup merge of #21258: aturon/stab-3-index

Conflicts:
	src/libcore/ops.rs
	src/librustc_typeck/astconv.rs
	src/libstd/io/mem.rs
	src/libsyntax/parse/lexer/mod.rs

1 files changed, 2 insertions, 2 deletions

diff --git a/src/libstd/num/strconv.rs b/src/libstd/num/strconv.rs
index 67fe599ecd6..1d3bf484edb 100644
--- a/src/libstd/num/strconv.rs
+++ b/src/libstd/num/strconv.rs
@@ -379,14 +379,14 @@ pub fn float_to_str_bytes_common<T: Float>(
 
             // only resize buf if we actually remove digits
             if i < buf_max_i {
-                buf = buf.slice(0, i + 1).to_vec();
+                buf = buf[.. (i + 1)].to_vec();
             }
         }
     } // If exact and trailing '.', just cut that
     else {
         let max_i = buf.len() - 1;
         if buf[max_i] == b'.' {
-            buf = buf.slice(0, max_i).to_vec();
+            buf = buf[.. max_i].to_vec();
         }
     }