incr.comp.: Cache check_match query.

src/librustc/ty/maps/config.rs

@@ -647,5 +647,6 @@ impl_disk_cacheable_query!(unsafety_check_result, |def_id| def_id.is_local());
 impl_disk_cacheable_query!(borrowck, |def_id| def_id.is_local());
 impl_disk_cacheable_query!(mir_borrowck, |def_id| def_id.is_local());
 impl_disk_cacheable_query!(mir_const_qualif, |def_id| def_id.is_local());
+impl_disk_cacheable_query!(check_match, |def_id| def_id.is_local());
 impl_disk_cacheable_query!(contains_extern_indicator, |_| true);
 impl_disk_cacheable_query!(def_symbol_name, |_| true);

src/librustc/ty/maps/on_disk_cache.rs

@@ -217,6 +217,7 @@ impl<'sess> OnDiskCache<'sess> {
             encode_query_results::<contains_extern_indicator, _>(tcx, enc, qri)?;
             encode_query_results::<symbol_name, _>(tcx, enc, qri)?;
             encode_query_results::<trans_fulfill_obligation, _>(tcx, enc, qri)?;
+            encode_query_results::<check_match, _>(tcx, enc, qri)?;
         }
 
         // Encode diagnostics

src/librustc/ty/maps/plumbing.rs

@@ -978,4 +978,5 @@ impl_load_from_cache!(
     SymbolName => def_symbol_name,
     ConstIsRvaluePromotableToStatic => const_is_rvalue_promotable_to_static,
     ContainsExternIndicator => contains_extern_indicator,
+    CheckMatch => check_match,
 );

src/librustc/util/common.rs

@@ -29,7 +29,7 @@ pub const FN_OUTPUT_NAME: &'static str = "Output";
 
 // Useful type to use with `Result<>` indicate that an error has already
 // been reported to the user, so no need to continue checking.
-#[derive(Clone, Copy, Debug)]
+#[derive(Clone, Copy, Debug, RustcEncodable, RustcDecodable)]
 pub struct ErrorReported;
 
 thread_local!(static TIME_DEPTH: Cell<usize> = Cell::new(0));