The parameters of the matrix constructor form an aggregate node that
was passed directly to the constructor of the structure, instead of
creating a one-element aggregate containing the matrix.

https://github.com/mc-imperial/shader-compiler-bugs/issues/74

Bug swiftshader:56

Change-Id: Iff9a2d8dc60d79a0dde28f2aad76407028486ec8
Reviewed-on: https://swiftshader-review.googlesource.com/19308Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>