[svn r5] Initial commit. Most things are very rough.

test/funcs.d

@@ -0,0 +1,48 @@
+void main()
+{
+    printf("Testing functions\n");
+    int i = 5;
+    assert(a(i) == 110);
+    assert(i == 11);
+
+    S s;
+    s.i = 5;
+    d(s);
+    assert(s.i == 5);
+    e(s);
+    assert(s.i == 6);
+
+    printf("  SUCCESS\n");
+}
+
+int a(ref int i)
+{
+    i*=2;
+    return b(i);
+}
+
+int b(ref int i)
+{
+    i++;
+    return c(i);
+}
+
+int c(int i)
+{
+    return i*10;
+}
+
+struct S
+{
+    int i;
+}
+
+void d(S s)
+{
+    s.i++;
+}
+
+void e(ref S s)
+{
+    s.i++;
+}