Fix passing of preprocessor definitions with double quotes to the
resource compiler and to MIDL. Both have a different escaping mechanism
then the C/C++ compiler tool. This fixes a regression introduced in
9e9911715c.
Task-number: QTBUG-30859
Change-Id: Ifa041df407030320847373a5964a547c39dd5439
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>