Auto merge of #114578 - petrochenkov:noplugin, r=cjgillot

rustc_interface: Dismantle `register_plugins` query

It did three independent things:
- Constructed `LintStore`
- Prepared incremental directories and dep graph
- Initialized some fields in `Session`

The `LintStore` construction (now `passes::create_lint_store`)  is more or less left in place.

The incremental stuff is now moved into `fn dep_graph_future`.
This helps us to start loading the dep graph a bit earlier.

The `Session` field initialization is moved to tcx construction point.
Now that tcx is constructed early these fields don't even need to live in `Session`, they can live in tcx instead and be initialized at its creation (see the FIXME).

Three previously existing `rustc_interface` queries are de-querified (`register_plugins`, `dep_graph_future`, `dep_graph`) because they are only used locally in `fn global_ctxt` and their results don't need to be saved elsewhere.

On the other hand, `crate_types` and `stable_crate_id` are querified.
They are used from different places and their use is very similar to the existing `crate_name` query in this regard.

1 files changed, 6 insertions, 10 deletions

diff --git a/compiler/rustc_driver_impl/src/lib.rs b/compiler/rustc_driver_impl/src/lib.rs
index 60dc9b20077..ec77569d4b8 100644
--- a/compiler/rustc_driver_impl/src/lib.rs
+++ b/compiler/rustc_driver_impl/src/lib.rs
@@ -32,7 +32,7 @@ use rustc_feature::find_gated_cfg;
 use rustc_fluent_macro::fluent_messages;
 use rustc_interface::util::{self, collect_crate_types, get_codegen_backend};
 use rustc_interface::{interface, Queries};
-use rustc_lint::LintStore;
+use rustc_lint::{unerased_lint_store, LintStore};
 use rustc_metadata::locator;
 use rustc_session::config::{nightly_options, CG_OPTIONS, Z_OPTIONS};
 use rustc_session::config::{ErrorOutputType, Input, OutFileName, OutputType, TrimmedDefPaths};
@@ -411,15 +411,11 @@ fn run_compiler(
                 return early_exit();
             }
 
-            {
-                let plugins = queries.register_plugins()?;
-                let (.., lint_store) = &*plugins.borrow();
-
-                // Lint plugins are registered; now we can process command line flags.
-                if sess.opts.describe_lints {
-                    describe_lints(sess, lint_store, true);
-                    return early_exit();
-                }
+            if sess.opts.describe_lints {
+                queries
+                    .global_ctxt()?
+                    .enter(|tcx| describe_lints(sess, unerased_lint_store(tcx), true));
+                return early_exit();
             }
 
             // Make sure name resolution and macro expansion is run.