Adding missing AddressOfExpr::GetLValueType()

tests/ref-10.ispc

@@ -0,0 +1,24 @@
+
+export uniform int width() { return programCount; }
+
+
+struct Foo {
+    float a, b, c;
+};
+
+void foo(Foo &f, uniform int dim) {
+    (&f.a)[dim] += (&f.a)[dim];
+}
+
+export void f_fu(uniform float RET[], uniform float aFOO[], uniform float b) {
+    Foo f = { b, aFOO[programIndex], 1 };
+    if (programIndex < 2)
+        foo(f, 0);
+    RET[programIndex] = f.a + f.b + f.c;
+}
+
+export void result(uniform float RET[]) {
+    RET[programIndex] = 7+programIndex;
+    RET[0] = 12;
+    RET[1] = 13;
+}