Fix links

Author: JohnTitor

src/appendix/code-index.md

@@ -21,8 +21,8 @@ Item            |  Kind    | Short description           | Chapter            |
 `Query` | struct | Represents the result of query to the `Compiler` interface and allows stealing, borrowing, and returning the results of compiler passes. | [The Rustc Driver and Interface] | [src/librustc_interface/queries.rs](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_interface/queries/struct.Query.html)
 `Rib` | struct | Represents a single scope of names | [Name resolution] | [src/librustc_resolve/lib.rs](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_resolve/late/struct.Rib.html)
 `Session` | struct | The data associated with a compilation session | [The parser], [The Rustc Driver and Interface] | [src/librustc/session/mod.html](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_session/struct.Session.html)
-`SourceFile` | struct | Part of the `SourceMap`. Maps AST nodes to their source code for a single source file. Was previously called FileMap | [The parser] | [src/librustc_span/lib.rs](https://doc.rust-lang.org/nightly/nightly-rustc/syntax/source_map/struct.SourceFile.html)
-`SourceMap` | struct | Maps AST nodes to their source code. It is composed of `SourceFile`s. Was previously called CodeMap | [The parser] | [src/libsyntax/source_map.rs](https://doc.rust-lang.org/nightly/nightly-rustc/syntax/source_map/struct.SourceMap.html)
+`SourceFile` | struct | Part of the `SourceMap`. Maps AST nodes to their source code for a single source file. Was previously called FileMap | [The parser] | [src/librustc_span/lib.rs](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_span/struct.SourceFile.html)
+`SourceMap` | struct | Maps AST nodes to their source code. It is composed of `SourceFile`s. Was previously called CodeMap | [The parser] | [src/librustc_span/source_map.rs](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_span/source_map/struct.SourceMap.html)
 `Span` | struct  | A location in the user's source code, used for error reporting primarily | [Emitting Diagnostics] | [src/librustc_span/span_encoding.rs](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_span/struct.Span.html)
 `StringReader` | struct | This is the lexer used during parsing. It consumes characters from the raw source code being compiled and produces a series of tokens for use by the rest of the parser | [The parser] |  [src/librustc_parse/lexer/mod.rs](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_parse/lexer/struct.StringReader.html)
 `syntax::token_stream::TokenStream` | struct | An abstract sequence of tokens, organized into `TokenTree`s | [The parser], [Macro expansion] | [src/libsyntax/tokenstream.rs](https://doc.rust-lang.org/nightly/nightly-rustc/syntax/tokenstream/struct.TokenStream.html)

src/diagnostics.md

@@ -9,14 +9,14 @@ This chapter is about how to emit compile errors and lints from the compiler.
 location in the code being compiled. `Span`s are attached to most constructs in
 HIR and MIR, allowing for more informative error reporting.
 
-[span]: https://doc.rust-lang.org/nightly/nightly-rustc/syntax/source_map/struct.Span.html
+[span]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_span/struct.Span.html
 
 A `Span` can be looked up in a [`SourceMap`][sourcemap] to get a "snippet"
 useful for displaying errors with [`span_to_snippet`][sptosnip] and other
 similar methods on the `SourceMap`.
 
-[sourcemap]: https://doc.rust-lang.org/nightly/nightly-rustc/syntax/source_map/struct.SourceMap.html
-[sptosnip]: https://doc.rust-lang.org/nightly/nightly-rustc/syntax/source_map/struct.SourceMap.html#method.span_to_snippet
+[sourcemap]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_span/source_map/struct.SourceMap.html
+[sptosnip]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_span/source_map/struct.SourceMap.html#method.span_to_snippet
 
 ## Error messages
 

src/rustc-driver.md

@@ -54,6 +54,6 @@ thread-locals, although you should rarely need to touch it.
 [`Compiler`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_interface/interface/struct.Compiler.html
 [`Session`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_session/struct.Session.html
 [`TyCtxt`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc/ty/struct.TyCtxt.html
-[`SourceMap`]: https://doc.rust-lang.org/nightly/nightly-rustc/syntax/source_map/struct.SourceMap.html
+[`SourceMap`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_span/source_map/struct.SourceMap.html
 [stupid-stats]: https://github.com/nrc/stupid-stats
 [Appendix A]: appendix/stupid-stats.html

src/the-parser.md

@@ -53,11 +53,11 @@ Code for lexical analysis is split between two crates:
 [libsyntax]: https://doc.rust-lang.org/nightly/nightly-rustc/syntax/index.html
 [rustc_errors]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_errors/index.html
 [ast]: https://en.wikipedia.org/wiki/Abstract_syntax_tree
-[`SourceMap`]: https://doc.rust-lang.org/nightly/nightly-rustc/syntax/source_map/struct.SourceMap.html
+[`SourceMap`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_span/source_map/struct.SourceMap.html
 [ast module]: https://doc.rust-lang.org/nightly/nightly-rustc/syntax/ast/index.html
 [librustc_parse]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_parse/index.html
 [parser]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_parse/parser/index.html
 [`Parser`]: https://doc.rust-lang.org/nightly/nightly-rustc/syntax/parse/parser/struct.Parser.html
 [`StringReader`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_parse/lexer/struct.StringReader.html
 [visit module]: https://doc.rust-lang.org/nightly/nightly-rustc/syntax/visit/index.html
-[sourcefile]: https://doc.rust-lang.org/nightly/nightly-rustc/syntax/source_map/struct.SourceFile.html
+[sourcefile]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_span/struct.SourceFile.html