init commit

test/codegen/multiple_semicolons_everywhere.golden

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+float4 foo();
+
+float3 vs_main(float3 pos : POSITION) : SV_POSITION
+{
+    return pos;
+}
+
+float4 foo()
+{
+    return float4(1.0f, 1.0f, 1.0f, 1.0f);
+}
+
+float4 ps_main() : SV_TARGET
+{
+    float4 y = foo();
+    float4 color = y;
+    return color;
+}
+