[Issue 18909] Lambda with default initializer gets called with random values instead

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18909

ag0aep6g <ag0aep6g at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |wrong-code
                 CC|                            |ag0aep6g at gmail.com

--- Comment #1 from ag0aep6g <ag0aep6g at gmail.com> ---
Reduced Phobos away:

----
void main() @safe
{
    assert(identity(2) == 2); /* fails; should pass */
}

struct Map(alias fun)
{
    int front() @safe { return fun(); }
}

int identity(immutable int q) pure nothrow @safe @nogc
{
    int getArg(int b) @safe
    {
        return b;
    }
    return Map!((int b = q) => getArg(b))().front();
}
----

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