st/glsl_to_tgsi: fix block copies of arrays of doubles
st/glsl_to_tgsi: fix block copies of arrays of doubles

Set the type of the left-hand side to the same as the right-hand side,
so that when the base type is double, the writemask of the MOV instruction
is properly fixed up.

Reviewed-by: Marek Olšák <8c7344a1abdb103e79ecfd488098373070c3c70e@amd.com>
Cc: 13.0 <59f39c0db42d4479a46b02d4d2bc11120e37bb44@lists.freedesktop.org>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler