test/tint/expressions/type_ctor/mat4x3/explicit/scalars/f32.wgsl

let m = mat4x3<f32>(0.0f, 1.0f, 2.0f,
                    3.0f, 4.0f, 5.0f,
                    6.0f, 7.0f, 8.0f,
                    9.0f, 10.0f, 11.0f);