std: Rename {Eq,Ord} to Partial{Eq,Ord}

This is part of the ongoing renaming of the equality traits. See #12517 for more
details. All code using Eq/Ord will temporarily need to move to Partial{Eq,Ord}
or the Total{Eq,Ord} traits. The Total traits will soon be renamed to {Eq,Ord}.

cc #12517

[breaking-change]

src/librustdoc/html/toc.rs

@@ -14,7 +14,7 @@ use std::fmt;
 use std::string::String;
 
 /// A (recursive) table of contents
-#[deriving(Eq)]
+#[deriving(PartialEq)]
 pub struct Toc {
     /// The levels are strictly decreasing, i.e.
     ///
@@ -36,7 +36,7 @@ impl Toc {
     }
 }
 
-#[deriving(Eq)]
+#[deriving(PartialEq)]
 pub struct TocEntry {
     level: u32,
     sec_number: String,
@@ -46,7 +46,7 @@ pub struct TocEntry {
 }
 
 /// Progressive construction of a table of contents.
-#[deriving(Eq)]
+#[deriving(PartialEq)]
 pub struct TocBuilder {
     top_level: Toc,
     /// The current heirachy of parent headings, the levels are