Move saving and loading a whole editor out of pardes.zig into dump.zig

Pure move, no behaviour change (acme keeps dump and load in rows.c):
dumpState, restore, initFromDump and initDump go verbatim to the end of
dump.zig, after the dump format they read and write. Inside dump.zig the
moved code's `dump.` prefix drops, so `Pane` there is the dump record; the
one editor pane it names is spelled `pardes.panes.Pane`, and its other
`panes.X` references become `pardes.panes.X` because dump.zig's own tests
use `panes` as a local name.

The methods become free functions taking `p: *Pardes`: `p.dumpState()`
becomes `dump.dumpState(p)`, `core.restore(bytes)` becomes
`dump.restore(core, bytes)` and `Pardes.initFromDump(..)` becomes
`dump.initFromDump(..)`, in pardes.zig, the shells, layout.zig,
Terminal.zig, builtins.zig and the tests (38 receiver rewrites plus the
initFromDump calls). The tag-tail restore helpers stay with the tag code.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 6 insertions, 6 deletions

diff --git a/test/output.zig b/test/output.zig
index b4c018db..7c5f7f9b 100644
--- a/test/output.zig
+++ b/test/output.zig
@@ -438,9 +438,9 @@ test "Mini dump preserves its exact virtual snapshot and body writes detach colo
     const id = p.active;
     const before = p.panes[id].?.file.?;
     try std.testing.expect(before.mini != null);
-    try p.dumpState();
+    try pardes.dump.dumpState(p);
     panes.File.setContent(p, &source.file.?, try p.gpa.dupe(u8, "changed\n"));
-    const restored = try Pardes.initFromDump(std.testing.allocator, .{ .tty_only = true }, p.dump_out.?);
+    const restored = try pardes.dump.initFromDump(std.testing.allocator, .{ .tty_only = true }, p.dump_out.?);
     defer restored.deinit();
     const mini = restored.panes[restored.active].?;
     try std.testing.expectEqualStrings(before.content, mini.file.?.content);
@@ -793,8 +793,8 @@ test "n/N skips formatted context and selects comment match locations" {
                 try std.testing.expectEqualStrings(line[0..file.location_rows[row].location_end], selectedOutputText(result) orelse "");
                 try std.testing.expectEqual(available, p.freeSlot());
             }
-            try p.dumpState();
-            const restored = try Pardes.initFromDump(p.gpa, .{ .tty_only = true }, p.dump_out.?);
+            try pardes.dump.dumpState(p);
+            const restored = try pardes.dump.initFromDump(p.gpa, .{ .tty_only = true }, p.dump_out.?);
             defer restored.deinit();
             pardes.look.armLookWalk(restored, id);
             const restored_result = restored.panes[id].?;
@@ -1570,8 +1570,8 @@ test "stacked search and LSP results retain source tint navigation and dump owne
                 const line = modal.lineSlice(file.content, matches[step.match]);
                 try std.testing.expectEqualStrings(line[0..row.location_end], selectedOutputText(pane) orelse "");
             }
-            try p.dumpState();
-            const restored = try Pardes.initFromDump(p.gpa, .{ .tty_only = true }, p.dump_out.?);
+            try pardes.dump.dumpState(p);
+            const restored = try pardes.dump.initFromDump(p.gpa, .{ .tty_only = true }, p.dump_out.?);
             defer restored.deinit();
             const restored_file = &restored.panes[id].?.file.?;
             try std.testing.expectEqualStrings(file.content, restored_file.content);