Parse error from GLSL compute shader

[demotomohiro]

I got Parse error from following GLSL compute shader.

test.cs:

#version 450

layout(local_size_x = 32) in;

void main(){
}

Output:

Parse error: Error in test.cs: Ln: 3 Col: 29
layout(local_size_x = 32) in;
                            ^
Expecting: Type qualifier, identifier, 'layout' or 'struct'

   場所 Parse.ParseImpl.runParser@347.Invoke(String message)
   場所 Microsoft.FSharp.Core.PrintfImpl.go@523-3[b,c,d](String fmt, Int32 len, FSharpFunc`2 outputChar, FSharpFunc`2 outa, b os
,
FSharpFunc`2 finalize, FSharpList`1 args, Int32 i)
   場所 Microsoft.FSharp.Core.PrintfImpl.run@521[b,c,d](FSharpFunc`2 initialize, String fmt, Int32 len, FSharpList`1 args)
   場所 <StartupCode$FSharp-Core>.$Reflect.Invoke@720-4.Invoke(T1 inp)
   場所 main.minify(String filename, String content)
   場所 main.run(String[] files)

[laurentlb]

Workaround: add verbatim markers.

//[
layout(local_size_x = 32) in;
//]