patch 8.0.1473: MS-Windows: D&D fails between 32 and 64 bit apps

Problem:    MS-Windows: D&D fails between 32 and 64 bit apps.
Solution:   Add the /HIGHENTROPYVA:NO linker option. (Ken Takata, closes #2504)

Author: brammool

src/Make_mvc.mak

@@ -1179,6 +1179,13 @@ LINKARGS1 = $(LINKARGS1) /LTCG:STATUS
 !endif
 !endif
 
+!if $(MSVC_MAJOR) >= 11 && "$(CPU)" == "AMD64" && "$(GUI)" == "yes"
+# This option is required for VC2012 or later so that 64-bit gvim can
+# accept D&D from 32-bit applications.  NOTE: This disables 64-bit ASLR,
+# therefore the security level becomes as same as VC2010.
+LINKARGS1 = $(LINKARGS1) /HIGHENTROPYVA:NO
+!endif
+
 all:	$(VIM).exe \
 	vimrun.exe \
 	install.exe \

src/version.c

@@ -771,6 +771,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1473,
 /**/
     1472,
 /**/