zig/test/incremental/make_decl_pub

#target=x86_64-linux-selfhosted
#target=x86_64-windows-selfhosted
#target=x86_64-linux-cbe
#target=x86_64-windows-cbe
#target=wasm32-wasi-selfhosted
#update=initial version
#file=main.zig
const foo = @import("foo.zig");
pub fn main() !void {
    try foo.hello();
}
#file=foo.zig
const std = @import("std");
fn hello() !void {
    try std.Io.File.stdout().writeStreamingAll(io, "Hello, World!\n");
}
const io = std.Io.Threaded.global_single_threaded.ioBasic();
#expect_error=main.zig:3:12: error: 'hello' is not marked 'pub'
#expect_error=foo.zig:2:1: note: declared here

#update=make hello pub
#file=foo.zig
const std = @import("std");
pub fn hello() !void {
    try std.Io.File.stdout().writeStreamingAll(io, "Hello, World!\n");
}
const io = std.Io.Threaded.global_single_threaded.ioBasic();
#expect_stdout="Hello, World!\n"