[gcc r14-8610] gccrs: ast: Lower 'for' lifetimes

[Arthur Cohen]

https://gcc.gnu.org/g:d8e8ad5493848a3b8f5883817770da2aba5d3edd

commit r14-8610-gd8e8ad5493848a3b8f5883817770da2aba5d3edd
Author: Jakub Dupak <dev@jakubdupak.com>
Date:   Sun Dec 3 12:32:55 2023 +0100

    gccrs: ast: Lower 'for' lifetimes
    
    gcc/rust/ChangeLog:
    
            * hir/rust-ast-lower-type.cc (ASTLoweringType::visit): For lifetimes.
    
    Signed-off-by: Jakub Dupak <dev@jakubdupak.com>

Diff:
---
 gcc/rust/hir/rust-ast-lower-type.cc | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/gcc/rust/hir/rust-ast-lower-type.cc b/gcc/rust/hir/rust-ast-lower-type.cc
index 5cea71f83a23..a0178ebf490e 100644
--- a/gcc/rust/hir/rust-ast-lower-type.cc
+++ b/gcc/rust/hir/rust-ast-lower-type.cc
@@ -199,6 +199,13 @@ ASTLoweringType::visit (AST::BareFunctionType &fntype)
 {
   bool is_variadic = false;
   std::vector<HIR::LifetimeParam> lifetime_params;
+  for (auto &lifetime_param : fntype.get_for_lifetimes ())
+    {
+      auto generic_param = ASTLowerGenericParam::translate (&lifetime_param);
+      lifetime_params.push_back (
+	*static_cast<HIR::LifetimeParam *> (generic_param));
+    }
+
   HIR::FunctionQualifiers qualifiers
     = lower_qualifiers (fntype.get_function_qualifiers ());