[svn r82] Fixed: Fall-through switch cases were broken.

test/bug42.d

@@ -0,0 +1,10 @@
+module bug42;
+
+void main() {
+    int i = 2;
+    switch (i) {
+    case 0:
+    case 1:
+    default:
+    }
+}

test/bug43.d

@@ -0,0 +1,16 @@
+module bug43;
+
+struct S
+{
+    ubyte[3] vals;
+}
+
+void func(ubyte[3] v)
+{
+}
+
+void main()
+{
+    S s;
+    func(s.vals);
+}

test/union6.d

@@ -0,0 +1,22 @@
+module union6;
+
+pragma(LLVM_internal, "notypeinfo") {
+    struct S
+    {
+        byte a;
+        byte b;
+    }
+    union U
+    {
+        byte a;
+        byte b;
+        S c;
+    }
+}
+
+void main()
+{
+    U u;
+    auto a = u.c.b;
+    //auto c = u.s.l;
+}