patch 9.0.1454: code indenting is confused by macros

Problem:    Code indenting is confused by macros.
Solution:   Put semicolon after the macros instead of inside. (Ozaki Kiichi,
            closes #12257)
diff --git a/src/buffer.c b/src/buffer.c
index f6c1610..6d4c435 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -5641,8 +5641,7 @@
     int		end;
     int		retval = OK;
     sctx_T	save_current_sctx;
-
-    ESTACK_CHECK_DECLARATION
+    ESTACK_CHECK_DECLARATION;
 
     prev = -1;
     for (s = ml_get(lnum); *s != NUL; ++s)
@@ -5686,7 +5685,7 @@
 
 	// prepare for emsg()
 	estack_push(ETYPE_MODELINE, (char_u *)"modelines", lnum);
-	ESTACK_CHECK_SETUP
+	ESTACK_CHECK_SETUP;
 
 	end = FALSE;
 	while (end == FALSE)
@@ -5747,7 +5746,7 @@
 	    s = e + 1;			// advance to next part
 	}
 
-	ESTACK_CHECK_NOW
+	ESTACK_CHECK_NOW;
 	estack_pop();
 	vim_free(linecopy);
     }