test/tint/identifiers/underscore/prefix/upper/parameter.wgsl.expected.msl - dawn - Git at Google

 #include <metal_stdlib>

 using namespace metal;
 void f(int _A) {
   int const B = _A;
 }
	#include <metal_stdlib>

	using namespace metal;
	void f(int _A) {
	int const B = _A;
	}