bug/tint/1757.wgsl:6:25 warning: use of deprecated language feature: 'sig' has been renamed to 'fract'
    let sig : f32 = res.sig;
                        ^^^

; SPIR-V
; Version: 1.3
; Generator: Google Tint Compiler; 0
; Bound: 13
; Schema: 0
               OpCapability Shader
          %9 = OpExtInstImport "GLSL.std.450"
               OpMemoryModel Logical GLSL450
               OpEntryPoint GLCompute %main "main"
               OpExecutionMode %main LocalSize 1 1 1
               OpName %main "main"
               OpName %__frexp_result "__frexp_result"
               OpMemberName %__frexp_result 0 "fract"
               OpMemberName %__frexp_result 1 "exp"
               OpMemberDecorate %__frexp_result 0 Offset 0
               OpMemberDecorate %__frexp_result 1 Offset 4
       %void = OpTypeVoid
          %1 = OpTypeFunction %void
      %float = OpTypeFloat 32
        %int = OpTypeInt 32 1
%__frexp_result = OpTypeStruct %float %int
%float_1_23000002 = OpConstant %float 1.23000002
       %main = OpFunction %void None %1
          %4 = OpLabel
          %5 = OpExtInst %__frexp_result %9 FrexpStruct %float_1_23000002
         %11 = OpCompositeExtract %int %5 1
         %12 = OpCompositeExtract %float %5 0
               OpReturn
               OpFunctionEnd