Use `self` accessors for accessing maps in views

This was missed by a prior change

PiperOrigin-RevId: 599822201

rust/test/nested.proto

@@ -39,6 +39,7 @@ message Outer {
     optional InnerEnum inner_enum = 17;
     repeated int32 repeated_int32 = 18 [packed = true];
     repeated InnerSubMsg repeated_inner_submsg = 19;
+    map<string, string> string_map = 20;
 
     message SuperInner {
       message DuperInner {

rust/test/shared/simple_nested_test.rs

@@ -75,6 +75,9 @@ fn test_nested_view_lifetimes() {
 
     let repeated_inner_submsg = outer_msg.inner().repeated_inner_submsg();
     assert_that!(repeated_inner_submsg, empty());
+
+    let string_map = outer_msg.inner().string_map();
+    assert_that!(string_map.len(), eq(0));
 }
 
 #[test]

src/google/protobuf/compiler/rust/accessors/map.cc

@@ -26,14 +26,16 @@ void Map::InMsgImpl(Context& ctx, const FieldDescriptor& field,
   ctx.Emit({{"field", RsSafeName(field.name())},
             {"Key", RsTypePath(ctx, key_type)},
             {"Value", RsTypePath(ctx, value_type)},
+            {"view_lifetime", ViewLifetime(accessor_case)},
+            {"view_self", ViewReceiver(accessor_case)},
             {"getter_thunk", ThunkName(ctx, field, "get")},
             {"getter_mut_thunk", ThunkName(ctx, field, "get_mut")},
             {"getter",
              [&] {
                if (ctx.is_upb()) {
                  ctx.Emit({}, R"rs(
-                    pub fn $field$(&self)
-                      -> $pb$::MapView<'_, $Key$, $Value$> {
+                    pub fn $field$($view_self$)
+                      -> $pb$::MapView<$view_lifetime$, $Key$, $Value$> {
                       unsafe {
                         $getter_thunk$(self.raw_msg())
                           .map_or_else(
@@ -44,8 +46,8 @@ void Map::InMsgImpl(Context& ctx, const FieldDescriptor& field,
                     })rs");
                } else {
                  ctx.Emit({}, R"rs(
-                    pub fn $field$(&self)
-                      -> $pb$::MapView<'_, $Key$, $Value$> {
+                    pub fn $field$($view_self$)
+                      -> $pb$::MapView<$view_lifetime$, $Key$, $Value$> {
                       unsafe {
                         $pb$::MapView::from_raw($pbi$::Private,
                           $getter_thunk$(self.raw_msg()))