HLSL: Turn on reflection, with basic test file, to catch regressions.

This is not a claim that reflection is working right, only a way to
see it is occurring and catch any regression.

Test/hlsl.reflection.vert

@@ -0,0 +1,165 @@
+
+cbuffer nameless {
+    float3 anonMember1;
+    float3x2 m23;
+    int scalarAfterm23;
+    float4 anonDeadMember2;
+    float4 anonMember3;
+    int scalarBeforeArray;
+    float floatArray[5];
+    int scalarAfterArray;
+    float2x2 m22[9];
+};
+
+cbuffer c_nameless {
+    float3 c_anonMember1;
+    float3x2 c_m23;
+    int c_scalarAfterm23;
+    float4 c_anonDeadMember2;
+    float4 c_anonMember3;
+};
+
+cbuffer named {
+    float3 deadMember1;
+    int scalar;
+    float4 member2;
+    float4 member3;
+    float2 memfloat2;
+    float memf1;
+    bool  memf2;
+    int   memf3;
+    float2 memfloat2a;
+    float2x2 m22[7];
+} ablock;
+
+cbuffer namelessdead {
+    int a;
+};
+
+cbuffer namedDead {
+    int b;
+} bblock;
+
+struct N1 {
+    float a;
+};
+
+struct N2 {
+    float b;
+    float c;
+    float d;
+};
+
+struct N3 {
+    N1 n1;
+    N2 n2;
+};
+
+cbuffer nested {
+    N3 foo;
+} nest;
+
+struct TS {
+    int a;
+    int dead;
+};
+
+uniform TS s;
+
+uniform float uf1;
+uniform float uf2;
+uniform float ufDead3;
+uniform float ufDead4;
+
+uniform float2x2 dm22[10];
+
+struct deep1 {
+    float2 va[3];
+    bool b;
+};
+
+struct deep2 {
+    int i;
+    deep1 d1[4];
+};
+
+struct deep3 {
+    float4 iv4;
+    deep2 d2;
+    int3 v3;
+};
+
+
+
+
+uniform deep3 deepA[2], deepB[2], deepC[3], deepD[2];
+
+const bool control = true;
+
+void deadFunction()
+{
+    float3 v3 = ablock.deadMember1;
+    float4 v = anonDeadMember2;
+    float f = ufDead4;
+}
+
+void liveFunction2()
+{
+    float3 v = anonMember1;
+    float f = uf1;
+}
+
+tbuffer abl {
+    float foo;
+} arrBl;
+
+tbuffer abl2 {
+    float foo;
+} arrBl2;
+
+void flizv(in float attributeFloat, in float2 attributeFloat2, in float3 attributeFloat3, in float4 attributeFloat4, in float4x4 attributeMat4)
+{
+    liveFunction2();
+
+    if (! control)
+        deadFunction();
+
+    float f;
+    int i;
+    if (control) {
+        liveFunction2();
+        f = anonMember3.z;
+        f = s.a;
+        f = ablock.scalar;
+        f = m23[1].y + scalarAfterm23;
+        f = c_m23[1].y + c_scalarAfterm23;
+        f += scalarBeforeArray;
+        f += floatArray[2];
+        f += floatArray[4];
+        f += scalarAfterArray;
+        f += ablock.memfloat2.x;
+        f += ablock.memf1;
+        f += float(ablock.memf2);
+        f += ablock.memf3;
+        f += ablock.memfloat2a.y;
+        f += ablock.m22[i][1][0];
+        f += dm22[3][0][1];
+        f += m22[2][1].y;
+        f += nest.foo.n1.a + nest.foo.n2.b + nest.foo.n2.c + nest.foo.n2.d;
+        f += deepA[i].d2.d1[2].va[1].x;
+        f += deepB[1].d2.d1[i].va[1].x;
+        f += deepB[i].d2.d1[i].va[1].x;
+        deep3 d = deepC[1];
+        deep3 da[2] = deepD;
+    } else
+        f = ufDead3;
+
+    f += arrBl.foo + arrBl.foo;
+    f += arrBl2.foo;
+
+    f += attributeFloat;
+    f += attributeFloat2.x;
+    f += attributeFloat3.x;
+    f += attributeFloat4.x;
+    f += attributeMat4[0][1];
+}