test/tint/expressions/type_ctor/mat3x3/inferred/vectors/f32.wgsl

let m = mat3x3(vec3<f32>(0.0f, 1.0f, 2.0f),
               vec3<f32>(3.0f, 4.0f, 5.0f),
               vec3<f32>(6.0f, 7.0f, 8.0f));