Allow SSR to match type references, items, paths and patterns

Part of #3186

Author: davidlattimore

Cargo.lock

@@ -29,6 +29,7 @@ ra_fmt = { path = "../ra_fmt" }
 ra_prof = { path = "../ra_prof" }
 test_utils = { path = "../test_utils" }
 ra_assists = { path = "../ra_assists" }
+ra_ssr = { path = "../ra_ssr" }
 
 # ra_ide should depend only on the top-level `hir` package. if you need
 # something from some `hir_xxx` subpackage, reexport the API via `hir`.

crates/ra_ide/Cargo.toml

@@ -70,7 +70,6 @@ pub use crate::{
     inlay_hints::{InlayHint, InlayHintsConfig, InlayKind},
     references::{Declaration, Reference, ReferenceAccess, ReferenceKind, ReferenceSearchResult},
     runnables::{Runnable, RunnableKind, TestId},
-    ssr::SsrError,
     syntax_highlighting::{
         Highlight, HighlightModifier, HighlightModifiers, HighlightTag, HighlightedRange,
     },
@@ -89,6 +88,7 @@ pub use ra_ide_db::{
     symbol_index::Query,
     RootDatabase,
 };
+pub use ra_ssr::SsrError;
 pub use ra_text_edit::{Indel, TextEdit};
 
 pub type Cancelable<T> = Result<T, Canceled>;