9187 – -inline doesn't work with nested lambda functions

As the code below shows, dmd doesn't compile well when a lambda function is nested another lambda(only fails if the result is used somehow later).
test case:
===========
module foo;
import std.algorithm, std.range, std.array;
auto bar()
{
	auto data = [5, 6, 7, 8],
		test = map!( (x) => reduce!"a+b"(data[$-x..$]) )([1, 3]);
	return array(test); // or "wrilteln(test);". if just "return test;" it works.
}
==========
When compile this module without -inline, it works. Otherwise it will be failed:
foo.d(7): Error: function foo.bar is a nested function and cannot be accessed from std.array.array!(MapResult!(__lambda2,int[])).array

Same test (but obfuscated a bit) as in Issue 4841 description.
*** This issue has been marked as a duplicate of issue 4841 ***