Test that out variables still work in leaf functions with capture on.

reference/opt/shaders-msl/vert/leaf-function.capture.vert

@@ -0,0 +1,35 @@
+#include <metal_stdlib>
+#include <simd/simd.h>
+
+using namespace metal;
+
+struct UBO
+{
+    float4x4 uMVP;
+};
+
+struct spvAux
+{
+    uint vertexCount;
+    uint swizzleConst[1];
+};
+
+struct main0_out
+{
+    float3 vNormal [[user(locn0)]];
+    float4 gl_Position [[position]];
+};
+
+struct main0_in
+{
+    float4 aVertex [[attribute(0)]];
+    float3 aNormal [[attribute(1)]];
+};
+
+vertex void main0(main0_in in [[stage_in]], constant UBO& _18 [[buffer(0)]], constant spvAux& spvAuxBuffer [[buffer(30)]], uint gl_VertexIndex [[vertex_id]], uint gl_BaseVertex [[base_vertex]], uint gl_InstanceIndex [[instance_id]], uint gl_BaseInstance [[base_instance]], device main0_out* spvOut [[buffer(29)]])
+{
+    device main0_out& out = spvOut[(gl_InstanceIndex - gl_BaseInstance) * spvAuxBuffer.vertexCount + gl_VertexIndex - gl_BaseVertex];
+    out.gl_Position = _18.uMVP * in.aVertex;
+    out.vNormal = in.aNormal;
+}
+

reference/shaders-msl/vert/leaf-function.capture.vert

@@ -0,0 +1,42 @@
+#pragma clang diagnostic ignored "-Wmissing-prototypes"
+
+#include <metal_stdlib>
+#include <simd/simd.h>
+
+using namespace metal;
+
+struct UBO
+{
+    float4x4 uMVP;
+};
+
+struct spvAux
+{
+    uint vertexCount;
+    uint swizzleConst[1];
+};
+
+struct main0_out
+{
+    float3 vNormal [[user(locn0)]];
+    float4 gl_Position [[position]];
+};
+
+struct main0_in
+{
+    float4 aVertex [[attribute(0)]];
+    float3 aNormal [[attribute(1)]];
+};
+
+void set_output(device float4& gl_Position, constant UBO& v_18, thread float4& aVertex, device float3& vNormal, thread float3& aNormal)
+{
+    gl_Position = v_18.uMVP * aVertex;
+    vNormal = aNormal;
+}
+
+vertex void main0(main0_in in [[stage_in]], constant UBO& v_18 [[buffer(0)]], constant spvAux& spvAuxBuffer [[buffer(30)]], uint gl_VertexIndex [[vertex_id]], uint gl_BaseVertex [[base_vertex]], uint gl_InstanceIndex [[instance_id]], uint gl_BaseInstance [[base_instance]], device main0_out* spvOut [[buffer(29)]])
+{
+    device main0_out& out = spvOut[(gl_InstanceIndex - gl_BaseInstance) * spvAuxBuffer.vertexCount + gl_VertexIndex - gl_BaseVertex];
+    set_output(out.gl_Position, v_18, in.aVertex, out.vNormal, in.aNormal);
+}
+

shaders-msl/vert/leaf-function.capture.vert

@@ -0,0 +1,22 @@
+#version 310 es
+
+layout(std140) uniform UBO
+{
+    uniform mat4 uMVP;
+};
+
+layout(location = 0) in vec4 aVertex;
+layout(location = 1) in vec3 aNormal;
+
+layout(location = 0) out vec3 vNormal;
+
+void set_output()
+{
+    gl_Position = uMVP * aVertex;
+    vNormal = aNormal;
+}
+
+void main()
+{
+    set_output();
+}