private struct's destructor causes internal error during compilation

[Sharp]

Hi all!

Sorry, my english is poor, so the compiler output and the source 
code will talk instead of me :)

I have DMD v2.057

<code>
d:\D\dmd2\windows\bin\dmd.exe -c "installer\functions.d" 
-of"D:\D\projects\ikonboard\ikonboarD\obj\Debug\functions.obj" 
-I"d:\D\dmd2\src\phobos" -I"d:\D\dmd2\src\druntime\import"  -gc 
-debug -unittest -w -wi

d:\D\dmd2\windows\bin\dmd.exe -c "installer\globals.d" 
-of"D:\D\projects\ikonboard\ikonboarD\obj\Debug\globals.obj" 
-I"d:\D\dmd2\src\phobos" -I"d:\D\dmd2\src\druntime\import"  -gc 
-debug -unittest -w -wi

d:\D\dmd2\windows\bin\dmd.exe -c "installer\installer.d" 
-of"D:\D\projects\ikonboard\ikonboarD\obj\Debug\installer.obj" 
-I"d:\D\dmd2\src\phobos" -I"d:\D\dmd2\src\druntime\import"  -gc 
-debug -unittest -w -wi

d:\D\dmd2\windows\bin\dmd.exe -c "installer\start.d" 
-of"D:\D\projects\ikonboard\ikonboarD\obj\Debug\start.obj" 
-I"d:\D\dmd2\src\phobos" -I"d:\D\dmd2\src\druntime\import"  -gc 
-debug -unittest -w -wi

installer\start.d(251): Warning: statement is not reachable

d:\D\dmd2\windows\bin\dmd.exe -c "utils\db.d" 
-of"D:\D\projects\ikonboard\ikonboarD\obj\Debug\db.obj" 
-I"d:\D\dmd2\src\phobos" -I"d:\D\dmd2\src\druntime\import"  -gc 
-debug -unittest -w -wi

Internal error: ..\ztc\cgcs.c 162

Exit code 1

d:\D\dmd2\windows\bin\dmd.exe -c "utils\htmllogger.d" 
-of"D:\D\projects\ikonboard\ikonboarD\obj\Debug\htmllogger.obj" 
-I"d:\D\dmd2\src\phobos" -I"d:\D\dmd2\src\druntime\import"  -gc 
-debug -unittest -w -wi

d:\D\dmd2\windows\bin\dmd.exe -c "utils\HtmlPage.d" 
-of"D:\D\projects\ikonboard\ikonboarD\obj\Debug\HtmlPage.obj" 
-I"d:\D\dmd2\src\phobos" -I"d:\D\dmd2\src\druntime\import"  -gc 
-debug -unittest -w -wi

d:\D\dmd2\windows\bin\dmd.exe -c "utils\HtmlResponse.d" 
-of"D:\D\projects\ikonboard\ikonboarD\obj\Debug\HtmlResponse.obj" 
-I"d:\D\dmd2\src\phobos" -I"d:\D\dmd2\src\druntime\import"  -gc 
-debug -unittest -w -wi

d:\D\dmd2\windows\bin\dmd.exe -c "utils\params.d" 
-of"D:\D\projects\ikonboard\ikonboarD\obj\Debug\params.obj" 
-I"d:\D\dmd2\src\phobos" -I"d:\D\dmd2\src\druntime\import"  -gc 
-debug -unittest -w -wi

d:\D\dmd2\windows\bin\dmd.exe -c "utils\script.d" 
-of"D:\D\projects\ikonboard\ikonboarD\obj\Debug\script.obj" 
-I"d:\D\dmd2\src\phobos" -I"d:\D\dmd2\src\druntime\import"  -gc 
-debug -unittest -w -wi

d:\D\dmd2\windows\bin\dmd.exe -c "installer\populate.d" 
-of"D:\D\projects\ikonboard\ikonboarD\obj\Debug\populate.obj" 
-I"d:\D\dmd2\src\phobos" -I"d:\D\dmd2\src\druntime\import"  -gc 
-debug -unittest -w -wi

</code>

In the db.d, if I remove the PreparedStatement's destructor, it 
compiles.

Here's the source code: 
http://dl.dropbox.com/u/11700363/ikonBoarD.rar

I hope I could help.

Sharp