[COMMITTED 037/146] gccrs: FnParam cloning now keeps projections

[arthur . cohen]

From: Pierre-Emmanuel Patry <pierre-emmanuel.pa...@embecosm.com>

FnParam type where monomorphized during cloning.

gcc/rust/ChangeLog:

        * typecheck/rust-tyty.h: Reverse monomorphization during cloning and
        make a new function to explicitly monomorphize.
        * typecheck/rust-tyty.cc: Use monomorphization when required.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.pa...@embecosm.com>
---
 gcc/rust/typecheck/rust-tyty.cc | 2 +-
 gcc/rust/typecheck/rust-tyty.h  | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/gcc/rust/typecheck/rust-tyty.cc b/gcc/rust/typecheck/rust-tyty.cc
index e2f1361a78e..1073dfa6adc 100644
--- a/gcc/rust/typecheck/rust-tyty.cc
+++ b/gcc/rust/typecheck/rust-tyty.cc
@@ -597,7 +597,7 @@ BaseType::monomorphized_clone () const
     {
       std::vector<TyTy::FnParam> cloned_params;
       for (auto &p : fn->get_params ())
-       cloned_params.push_back (p.clone ());
+       cloned_params.push_back (p.monomorphized_clone ());
 
       BaseType *retty = fn->get_return_type ()->monomorphized_clone ();
       return new FnType (fn->get_ref (), fn->get_ty_ref (), fn->get_id (),
diff --git a/gcc/rust/typecheck/rust-tyty.h b/gcc/rust/typecheck/rust-tyty.h
index 4d1a082f80d..94f7bce00f8 100644
--- a/gcc/rust/typecheck/rust-tyty.h
+++ b/gcc/rust/typecheck/rust-tyty.h
@@ -791,6 +791,11 @@ public:
   void set_type (BaseType *new_type) { type = new_type; }
 
   FnParam clone () const
+  {
+    return FnParam (pattern->clone_pattern (), type->clone ());
+  }
+
+  FnParam monomorphized_clone () const
   {
     return FnParam (pattern->clone_pattern (), type->monomorphized_clone ());
   }
-- 
2.45.2