Replace some C-style casts in ugly macros with static_cast

...in preparation for a to-be-committed improved loplugin:cstylecast doing such
rewriting automatically, but giving up on these macros

Change-Id: I6d1400fc2326bafe850307fb840829619362e0fd
Reviewed-on: https://gerrit.libreoffice.org/47751Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

filter/source/t602/t602filter.cxx

@@ -916,10 +916,10 @@ bool T602ImportFilterDialog::OptionsDlg()
 {
     Any any;
 #define propInt_(_prop,_nam,_val) \
-    any <<= (sal_Int32)_val;\
+    any <<= static_cast<sal_Int32>(_val);\
     _prop->setPropertyValue(_nam, any);
 #define propShort_(_prop,_nam,_val) \
-    any <<= (sal_Int16)_val;\
+    any <<= static_cast<sal_Int16>(_val);\
     _prop->setPropertyValue(_nam, any);
 #define propBool_(_prop,_nam,_val) \
     any <<= _val;\