patch 8.1.0607: proto files are not in sync with the source code

Problem:    Proto files are not in sync with the source code.
Solution:   Update the proto files.
diff --git a/src/proto/misc2.pro b/src/proto/misc2.pro
index b821417..949ff72 100644
--- a/src/proto/misc2.pro
+++ b/src/proto/misc2.pro
@@ -20,8 +20,8 @@
 void adjust_cursor_col(void);
 int leftcol_changed(void);
 void vim_mem_profile_dump(void);
-char_u *alloc(unsigned size);
 int alloc_does_fail(long_u size);
+char_u *alloc(unsigned size);
 char_u *alloc_id(unsigned size, alloc_id_T id);
 char_u *alloc_clear(unsigned size);
 char_u *alloc_check(unsigned size);