Rust: extract crate graph

Author: aibaars

Cargo.lock

@@ -14,6 +14,7 @@ ra_ap_base_db = "0.0.266"
 ra_ap_hir = "0.0.266"
 ra_ap_hir_def = "0.0.266"
 ra_ap_ide_db = "0.0.266"
+ra_ap_hir_ty = "0.0.266"
 ra_ap_hir_expand = "0.0.266"
 ra_ap_load-cargo = "0.0.266"
 ra_ap_paths = "0.0.266"
@@ -39,3 +40,4 @@ toml = "0.8.20"
 tracing = "0.1.41"
 tracing-flame = "0.2.0"
 tracing-subscriber = "0.3.19"
+chalk-ir = "0.99.0"