addition of try prevents proper error unwrapping coercion

[nektro]

Zig Version

0.14.0-dev.2851+b074fb7dd

Steps to Reproduce and Observed Behavior

const std = @import("std");

test {
    _ = try foo();
}

fn foo() error{OutOfMemory}![]const u8 {
    return try switch (@as(enum { a, b, c }, .b)) {
        inline else => |v| std.fmt.allocPrint(std.heap.c_allocator, "{s}", .{@tagName(v)}),
    };
}

test.zig:9:46: error: expected type 'error{OutOfMemory}!error{OutOfMemory}![]const u8', found 'error{OutOfMemory}![]u8'
        inline else => |v| std.fmt.allocPrint(std.heap.c_allocator, "{s}", .{@tagName(v)}),
                           ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
test.zig:9:46: note: error union payload '[]u8' cannot cast into error union payload 'error{OutOfMemory}![]const u8'

Expected Behavior

works
or tells me to remove the try

[nektro]

editing foo to use return switch works as expected and is arguably better code but wanted to submit this for consideration

[mlugg]

Same cause as #21991; I'll try and get this sorted before the release of 0.14.0.