zig/test/incremental/delete_comptime_decls

#target=x86_64-linux-selfhosted
#target=x86_64-linux-cbe
#target=x86_64-windows-cbe
#target=wasm32-wasi-selfhosted
#update=initial version
#file=main.zig
pub fn main() void {}
comptime {
    var array = [_:0]u8{ 1, 2, 3, 4 };
    const src_slice: [:0]u8 = &array;
    const slice = src_slice[2..6];
    _ = slice;
}
comptime {
    var array = [_:0]u8{ 1, 2, 3, 4 };
    const slice = array[2..6];
    _ = slice;
}
comptime {
    var array = [_]u8{ 1, 2, 3, 4 };
    const slice = array[2..5];
    _ = slice;
}
comptime {
    var array = [_:0]u8{ 1, 2, 3, 4 };
    const slice = array[3..2];
    _ = slice;
}
#expect_error=main.zig:5:32: error: end index 6 out of bounds for slice of length 4 +1 (sentinel)
#expect_error=main.zig:10:28: error: end index 6 out of bounds for array of length 4 +1 (sentinel)
#expect_error=main.zig:15:28: error: end index 5 out of bounds for array of length 4
#expect_error=main.zig:20:25: error: start index 3 is larger than end index 2

#update=delete and modify comptime decls
#file=main.zig
pub fn main() void {}
comptime {
    const x: [*c]u8 = null;
    var runtime_len: usize = undefined;
    runtime_len = 0;
    const y = x[0..runtime_len];
    _ = y;
}
#expect_error=main.zig:6:16: error: slice of null pointer