rollup merge of #22502: nikomatsakis/deprecate-bracket-bracket

Conflicts:
	src/libcollections/slice.rs
	src/libcollections/str.rs
	src/librustc/middle/lang_items.rs
	src/librustc_back/rpath.rs
	src/librustc_typeck/check/regionck.rs
	src/libstd/ffi/os_str.rs
	src/libsyntax/diagnostic.rs
	src/libsyntax/parse/parser.rs
	src/libsyntax/util/interner.rs
	src/test/run-pass/regions-refcell.rs

1 files changed, 3 insertions, 3 deletions

diff --git a/src/libgraphviz/lib.rs b/src/libgraphviz/lib.rs
index 28a97b1e8db..3d594378f55 100644
--- a/src/libgraphviz/lib.rs
+++ b/src/libgraphviz/lib.rs
@@ -455,7 +455,7 @@ impl<'a> LabelText<'a> {
     pub fn escape(&self) -> String {
         match self {
             &LabelStr(ref s) => s.escape_default(),
-            &EscStr(ref s) => LabelText::escape_str(&s[]),
+            &EscStr(ref s) => LabelText::escape_str(&s[..]),
         }
     }
 
@@ -484,7 +484,7 @@ impl<'a> LabelText<'a> {
         let mut prefix = self.pre_escaped_content().into_owned();
         let suffix = suffix.pre_escaped_content();
         prefix.push_str(r"\n\n");
-        prefix.push_str(&suffix[]);
+        prefix.push_str(&suffix[..]);
         EscStr(prefix.into_cow())
     }
 }
@@ -678,7 +678,7 @@ mod tests {
 
     impl<'a> Labeller<'a, Node, &'a Edge> for LabelledGraph {
         fn graph_id(&'a self) -> Id<'a> {
-            Id::new(&self.name[]).unwrap()
+            Id::new(&self.name[..]).unwrap()
         }
         fn node_id(&'a self, n: &Node) -> Id<'a> {
             id_name(n)