[PATCH 3/5] d3d10/effect: Create shaders with stream output when declaration string is present.

[Matteo Bruni]

Signed-off-by: Matteo Bruni <mbruni at codeweavers.com>
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It just came to my mind that it's possible to have streamout without a
geometry shader in d3d10/11 (see
e.g. CreateGeometryShaderWithStreamOutput() docs). I don't know if
effects support that but worth a look I guess?