d3dcompiler: Implement D3DGetDebugInfo().

include/d3dcompiler.h

diff --git a/include/d3dcompiler.h b/include/d3dcompiler.h
index 9079920..11ccf56 100644
--- a/include/d3dcompiler.h
+++ b/include/d3dcompiler.h
@@ -65,6 +65,7 @@
 HRESULT WINAPI D3DGetInputSignatureBlob(const void *data, SIZE_T data_size, ID3DBlob **blob);
 HRESULT WINAPI D3DGetOutputSignatureBlob(const void *data, SIZE_T data_size, ID3DBlob **blob);
 HRESULT WINAPI D3DGetInputAndOutputSignatureBlob(const void *data, SIZE_T data_size, ID3DBlob **blob);
+HRESULT WINAPI D3DGetDebugInfo(const void *data, SIZE_T data_size, ID3DBlob **blob);
 
 HRESULT WINAPI D3DCreateBlob(SIZE_T data_size, ID3DBlob **blob);