Update to new rustdoc APIs

Author: GuillaumeGomez

src/librustdoc/clean/types.rs

@@ -37,7 +37,6 @@ use crate::clean::inline;
 use crate::clean::types::Type::{QPath, ResolvedPath};
 use crate::clean::Clean;
 use crate::core::DocContext;
-use crate::doctree;
 use crate::formats::cache::Cache;
 use crate::formats::item_type::ItemType;
 use crate::html::render::cache::ExternalLocation;

src/librustdoc/formats/renderer.rs

@@ -1,4 +1,4 @@
-use rustc_middle::ty;
+use rustc_middle::ty::TyCtxt;
 use rustc_span::edition::Edition;
 
 use crate::clean;
@@ -21,7 +21,7 @@ crate trait FormatRenderer<'tcx>: Clone {
         render_info: RenderInfo,
         edition: Edition,
         cache: Cache,
-        tcx: ty::TyCtxt<'tcx>,
+        tcx: TyCtxt<'tcx>,
     ) -> Result<(Self, clean::Crate), Error>;
 
     /// Renders a single non-module item. This means no recursive sub-item rendering is required.
@@ -69,9 +69,6 @@ crate fn run_format<'tcx, T: FormatRenderer<'tcx>>(
         .extra_verbose_generic_activity("create_renderer", T::descr())
         .run(|| T::init(krate, options, render_info, edition, cache, tcx))?;
 
-    let (mut format_renderer, mut krate) =
-        T::init(krate, options, render_info, edition, cache, tcx)?;
-
     let mut item = match krate.module.take() {
         Some(i) => i,
         None => return Ok(()),

src/librustdoc/html/render/mod.rs

@@ -394,7 +394,7 @@ impl<'tcx> FormatRenderer<'tcx> for Context<'tcx> {
         _render_info: RenderInfo,
         edition: Edition,
         mut cache: Cache,
-        tcx: ty::TyCtxt<'tcx>,
+        tcx: TyCtxt<'tcx>,
     ) -> Result<(Self, clean::Crate), Error> {
         // need to save a copy of the options for rendering the index page
         let md_opts = options.clone();

src/librustdoc/json/mod.rs

@@ -136,7 +136,7 @@ impl<'tcx> FormatRenderer<'tcx> for JsonRenderer<'tcx> {
         _render_info: RenderInfo,
         _edition: Edition,
         cache: Cache,
-        tcx: ty::TyCtxt<'tcx>,
+        tcx: TyCtxt<'tcx>,
     ) -> Result<(Self, clean::Crate), Error> {
         debug!("Initializing json renderer");
         Ok((