[svn r76] Fixed: TypeInfo for structs.

Fixed: PostExp was unable to allocate storage for parameters.
Fixed: Many types of functions and delegates were broken.
Misc cleanups.

test/bug39.d

@@ -0,0 +1,13 @@
+module bug39;
+
+struct S
+{
+    long l;
+}
+
+void main()
+{
+    S s;
+    s.l = 23;
+    void* p = &s;
+}