Make sure to add parens if a PncApply dbg stmt becomes a space-separated Apply

Author: joshuawarner32

crates/compiler/fmt/src/expr.rs

@@ -1340,9 +1340,16 @@ pub fn expr_lift_spaces<'a, 'b: 'a>(
 
             let right_lifted = expr_lift_spaces_after(Parens::InOperator, arena, &right.value);
 
+            let mut item =
+                Expr::BinOps(lefts, arena.alloc(Loc::at(right.region, right_lifted.item)));
+
+            if parens == Parens::InApply || parens == Parens::InApplyLastArg {
+                item = Expr::ParensAround(arena.alloc(item));
+            }
+
             Spaces {
                 before,
-                item: Expr::BinOps(lefts, arena.alloc(Loc::at(right.region, right_lifted.item))),
+                item,
                 after: right_lifted.after,
             }
         }

crates/compiler/test_syntax/tests/snapshots/pass/dbg_pnc_a_over_a.expr.formatted.roc

@@ -0,0 +1,2 @@
+dbg (a / a)
+d

crates/compiler/test_syntax/tests/snapshots/pass/dbg_pnc_a_over_a.expr.result-ast

@@ -0,0 +1,32 @@
+@0-8 SpaceAfter(
+    DbgStmt {
+        first: @4-7 BinOps(
+            [
+                (
+                    @4-5 Var {
+                        module_name: "",
+                        ident: "a",
+                    },
+                    @5-6 Slash,
+                ),
+            ],
+            @6-7 Var {
+                module_name: "",
+                ident: "a",
+            },
+        ),
+        extra_args: [],
+        continuation: @9-10 SpaceBefore(
+            Var {
+                module_name: "",
+                ident: "d",
+            },
+            [
+                Newline,
+            ],
+        ),
+    },
+    [
+        Newline,
+    ],
+)

crates/compiler/test_syntax/tests/snapshots/pass/dbg_pnc_a_over_a.expr.roc

@@ -0,0 +1,2 @@
+dbg(a/a)
+d

crates/compiler/test_syntax/tests/test_snapshots.rs

@@ -397,6 +397,7 @@ mod test_snapshots {
         pass/dbg_double_newline.expr,
         pass/dbg_extra_parens.expr,
         pass/dbg_newline_apply.expr,
+        pass/dbg_pnc_a_over_a.expr,
         pass/dbg_stmt.expr,
         pass/dbg_stmt_in_parens.expr,
         pass/dbg_stmt_multiline.expr,