Mysterious OPTLINK crash on Win7 x64

[Mehrdad]

I'm getting a mysterious OPTLINK crash on Windows 7 x64, DMD32 
v2.060.
The error is very sensitive to the actual code; I suspect some 
sort of limit is overflowing (perhaps a "maximum symbol name 
length" of some sort?).


The code to reproduce it (... hopefully) is below:

// dmd -property -vtls -w -wi ICE.d -g
private import std.algorithm, std.range, std.regex;
void foo() { "".match(regex("")); }
auto parseInput()
{
	int[int] g;
	auto items = g.keys.map!(l => g.keys.map!(ps => regex(""))())();
	return (delegate(x)
	{
		struct S { }
		return items.map!(t => t)();
	})(g.keys.filter!(k => k)().map!(p => g.keys.map!(p => 
p)())().array());
}
void main() { parseInput(); }


Ideas?