test/tint/expressions/type_ctor/mat3x4/inferred/vectors/abstract-float.wgsl

let m = mat3x4(vec4(0.0, 1.0, 2.0, 3.0),
               vec4(4.0, 5.0, 6.0, 7.0),
               vec4(8.0, 9.0, 10.0, 11.0));