swr/rast: Fix include for createInstructionCombiningPass with llvm-7.0.
Fix build error after llvm-7.0.0svn r330669 ("InstCombine: Fix layering
by not including Scalar.h in InstCombine").
CXX rasterizer/jitter/libmesaswr_la-blend_jit.lo
rasterizer/jitter/blend_jit.cpp:816:20: error: use of undeclared identifier 'createInstructionCombiningPass'; did you mean 'createInstructionSimplifierPass'?
passes.add(createInstructionCombiningPass());
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
createInstructionSimplifierPass
Suggested-by: George Kyriazis <george.kyriazis@intel.com>
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-By: George Kyriazis <george.kyriazis@intel.com>