Split `infer` query into two for better profiling

This is the same change as we did with `crate_def_map` and it does seem
that we mostly spend time in salsa, without recomputing much on
rust-analyzer side.

Example output:

```
 233ms - handle_inlay_hints
      163ms - get_inlay_hints
          163ms - SourceAnalyzer::new
               67ms - def_with_body_from_child_node
                   67ms - analyze_container
                       67ms - analyze_container
                           67ms - Module::from_definition
                               67ms - Module::from_file
                                   67ms - crate_def_map
                                        0ms - parse_macro_query (6 calls)
                                        0ms - raw_items_query (1 calls)
                                       66ms - ???
                            0ms - crate_def_map (1 calls)
                        0ms - crate_def_map (1 calls)
               96ms - infer
                    2ms - trait_solve_query (2 calls)
                   94ms - ???
                0ms - body_with_source_map_query (1 calls)
                0ms - crate_def_map (1 calls)
      [...]
```

Signed-off-by: Michal Terepeta <[email protected]>

1 files changed, 2 insertions, 2 deletions

diff --git a/crates/ra_hir_ty/src/infer.rs b/crates/ra_hir_ty/src/infer.rs
index 37e69599d..e2eda3134 100644
--- a/crates/ra_hir_ty/src/infer.rs
+++ b/crates/ra_hir_ty/src/infer.rs
@@ -62,8 +62,8 @@ mod pat;
 mod coerce;
 
 /// The entry point of type inference.
-pub fn infer_query(db: &impl HirDatabase, def: DefWithBodyId) -> Arc<InferenceResult> {
-    let _p = profile("infer_query");
+pub fn do_infer_query(db: &impl HirDatabase, def: DefWithBodyId) -> Arc<InferenceResult> {
+    let _p = profile("do_infer");
     let resolver = def.resolver(db);
     let mut ctx = InferenceContext::new(db, def, resolver);