Fix #125 - fix generation of nested context chains.

Just declaring the type of the parent is obviously not enoguh, we need to have run this very code for determining level and context type (if the parent is also nested, that is).

gen/nested.cpp

@@ -417,8 +417,8 @@ static void DtoCreateNestedContextType(FuncDeclaration* fd) {
             unsigned depth = -1;
             if (!fd->isStatic()) {
                 if (FuncDeclaration* parfd = getParentFunc(fd, true)) {
-                    // Make sure parfd->ir.irFunc has already been set.
-                    DtoDeclareFunction(parfd);
+                    // Make sure the parent has already been analyzed.
+                    DtoCreateNestedContextType(parfd);
 
                     innerFrameType = parfd->ir.irFunc->frameType;
                     if (innerFrameType)