Test/preprocessor.stringify_invalid.vert - third_party/glslang - Git at Google

 #version 450
 #extension GL_EXT_debug_printf : enable

 #define WRONG(arg) ###arg
 #define OK(arg) a######arg

 void main() {
 }
	#version 450
	#extension GL_EXT_debug_printf : enable

	#define WRONG(arg) ###arg
	#define OK(arg) a######arg

	void main() {
	}