patch 8.2.0149: maintaining a Vim9 branch separately is more work

Problem:    Maintaining a Vim9 branch separately is more work.
Solution:   Merge the Vim9 script changes.
diff --git a/src/Make_cyg_ming.mak b/src/Make_cyg_ming.mak
index f89d8dd..639f3e5 100644
--- a/src/Make_cyg_ming.mak
+++ b/src/Make_cyg_ming.mak
@@ -788,6 +788,9 @@
 	$(OUTDIR)/usercmd.o \
 	$(OUTDIR)/userfunc.o \
 	$(OUTDIR)/version.o \
+	$(OUTDIR)/vim9compile.o \
+	$(OUTDIR)/vim9execute.o \
+	$(OUTDIR)/vim9script.o \
 	$(OUTDIR)/viminfo.o \
 	$(OUTDIR)/winclip.o \
 	$(OUTDIR)/window.o
@@ -1153,6 +1156,12 @@
 
 $(OUTDIR)/version.o: version.c $(INCL) version.h
 
+$(OUTDIR)/vim9compile.o: vim9compile.c $(INCL) version.h
+
+$(OUTDIR)/vim9execute.o: vim9execute.c $(INCL) version.h
+
+$(OUTDIR)/vim9script.o: vim9script.c $(INCL) version.h
+
 $(OUTDIR)/viminfo.o: viminfo.c $(INCL) version.h
 
 $(OUTDIR)/gui_dwrite.o:	gui_dwrite.cpp gui_dwrite.h