This series allows linking of our d3dx9.dll against d3dcompiler.lib from the Windows SDK. It presumably also fixes the d3dcompiler tests, although I didn't bother building them with Visual Studio so far.
And yes, I did check, that stringification macro works on MSVC.
-- v3: d3dcompiler: Make D3DAssemble a private export. d3dcompiler/tests: Load D3DAssemble via GetProcAddress. d3dx9: Load D3DAssemble via GetProcAddress.