[gcc/devel/rust/master] refacor resolution of TypePaths to be a static function

[Thomas Schwinge <tschwinge@gcc.gnu.org>]

https://gcc.gnu.org/g:700849ffd066855f9d831a6bb34d4fc3de30ed50

commit 700849ffd066855f9d831a6bb34d4fc3de30ed50
Author: Philip Herron <philip.herron@embecosm.com>
Date:   Tue Jun 28 13:31:24 2022 +0100

    refacor resolution of TypePaths to be a static function

Diff:
---
 gcc/rust/resolve/rust-ast-resolve-type.cc | 12 ++----------
 gcc/rust/resolve/rust-ast-resolve-type.h  |  7 +------
 2 files changed, 3 insertions(+), 16 deletions(-)

diff --git a/gcc/rust/resolve/rust-ast-resolve-type.cc b/gcc/rust/resolve/rust-ast-resolve-type.cc
index 902f034781e..275f241e4b6 100644
--- a/gcc/rust/resolve/rust-ast-resolve-type.cc
+++ b/gcc/rust/resolve/rust-ast-resolve-type.cc
@@ -245,19 +245,11 @@ ResolveType::visit (AST::SliceType &type)
 
 // resolve relative type-paths
 
-ResolveRelativeTypePath::ResolveRelativeTypePath (CanonicalPath qualified_path)
-  : ResolveTypeToCanonicalPath (true, true)
-{
-  result = qualified_path;
-}
-
 bool
 ResolveRelativeTypePath::go (AST::TypePath &path, NodeId &resolved_node_id)
 {
-  CanonicalPath result = CanonicalPath::create_empty ();
-  ResolveRelativeTypePath o (result);
-  auto &resolver = o.resolver;
-  auto &mappings = o.mappings;
+  auto resolver = Resolver::get ();
+  auto mappings = Analysis::Mappings::get ();
 
   NodeId module_scope_id = resolver->peek_current_module_scope ();
   NodeId previous_resolved_node_id = module_scope_id;
diff --git a/gcc/rust/resolve/rust-ast-resolve-type.h b/gcc/rust/resolve/rust-ast-resolve-type.h
index 8bbb587cb6f..86008308c6a 100644
--- a/gcc/rust/resolve/rust-ast-resolve-type.h
+++ b/gcc/rust/resolve/rust-ast-resolve-type.h
@@ -79,15 +79,10 @@ protected:
   bool failure_flag;
 };
 
-class ResolveRelativeTypePath : public ResolveTypeToCanonicalPath
+class ResolveRelativeTypePath
 {
-  using ResolveTypeToCanonicalPath::visit;
-
 public:
   static bool go (AST::TypePath &path, NodeId &resolved_node_id);
-
-private:
-  ResolveRelativeTypePath (CanonicalPath qualified_path);
 };
 
 class ResolveRelativeQualTypePath : public ResolverBase