patch 8.1.1727: code for viminfo support is spread out

Problem:    Code for viminfo support is spread out.
Solution:   Move to code to viminfo.c. (Yegappan Lakshmanan, closes #4686)
diff --git a/src/Make_vms.mms b/src/Make_vms.mms
index 92c078b..73f4998 100644
--- a/src/Make_vms.mms
+++ b/src/Make_vms.mms
@@ -316,8 +316,8 @@
 	misc2.c move.c normal.c ops.c option.c popupmnu.c popupwin.c \
 	profiler.c quickfix.c regexp.c search.c sha256.c sign.c spell.c \
 	spellfile.c syntax.c tag.c term.c termlib.c testing.c textprop.c ui.c \
-	undo.c usercmd.c userfunc.c version.c screen.c window.c os_unix.c \
-	os_vms.c pathdef.c \
+	undo.c usercmd.c userfunc.c version.c viminfo.c screen.c window.c \
+	os_unix.c os_vms.c pathdef.c \
 	$(GUI_SRC) $(PERL_SRC) $(PYTHON_SRC) $(TCL_SRC) \
  	$(RUBY_SRC) $(HANGULIN_SRC) $(MZSCH_SRC) $(XDIFF_SRC)
 
@@ -332,7 +332,7 @@
 	popupmnu.obj popupwin.obj profiler.obj quickfix.obj regexp.obj \
 	search.obj sha256.obj sign.obj spell.obj spellfile.obj syntax.obj \
 	tag.obj term.obj termlib.obj testing.obj textprop.obj ui.obj undo.obj \
-	usercmd.obj userfunc.obj screen.obj version.obj window.obj \
+	usercmd.obj userfunc.obj screen.obj version.obj viminfo.obj window.obj \
 	os_unix.obj os_vms.obj pathdef.obj if_mzsch.obj \
 	$(GUI_OBJ) $(PERL_OBJ) $(PYTHON_OBJ) $(TCL_OBJ) \
  	$(RUBY_OBJ) $(HANGULIN_OBJ) $(MZSCH_OBJ) $(XDIFF_OBJ)
@@ -780,6 +780,10 @@
  ascii.h keymap.h term.h macros.h structs.h regexp.h \
  gui.h beval.h [.proto]gui_beval.pro option.h ex_cmds.h proto.h \
  globals.h version.h
+viminfo.obj : viminfo.c vim.h [.auto]config.h feature.h os_unix.h \
+ ascii.h keymap.h term.h macros.h structs.h regexp.h \
+ gui.h beval.h [.proto]gui_beval.pro option.h ex_cmds.h proto.h \
+ globals.h version.h
 window.obj : window.c vim.h [.auto]config.h feature.h os_unix.h \
  ascii.h keymap.h term.h macros.h structs.h regexp.h \
  gui.h beval.h [.proto]gui_beval.pro option.h ex_cmds.h proto.h \