std.zig: move render state to struct; add fixups

lib/std/zig/Ast.zig

@@ -117,8 +117,10 @@ pub fn render(tree: Ast, gpa: Allocator) RenderError![]u8 {
     return buffer.toOwnedSlice();
 }
 
-pub fn renderToArrayList(tree: Ast, buffer: *std.ArrayList(u8)) RenderError!void {
-    return @import("./render.zig").renderTree(buffer, tree);
+pub const Fixups = private_render.Fixups;
+
+pub fn renderToArrayList(tree: Ast, buffer: *std.ArrayList(u8), fixups: Fixups) RenderError!void {
+    return @import("./render.zig").renderTree(buffer, tree, fixups);
 }
 
 /// Returns an extra offset for column and byte offset of errors that
@@ -3530,6 +3532,7 @@ const Token = std.zig.Token;
 const Ast = @This();
 const Allocator = std.mem.Allocator;
 const Parse = @import("Parse.zig");
+const private_render = @import("./render.zig");
 
 test {
     testing.refAllDecls(@This());