patch 8.1.1076: file for Insert mode is much too big

Problem:    File for Insert mode is much too big.
Solution:   Split off the code for Insert completion. (Yegappan Lakshmanan,
            closes #4044)
diff --git a/src/search.c b/src/search.c
index 850fd06..7d57e85 100644
--- a/src/search.c
+++ b/src/search.c
@@ -5479,7 +5479,7 @@
 #ifdef FEAT_INS_EXPAND
 	if (action == ACTION_EXPAND)
 	    ins_compl_check_keys(30, FALSE);
-	if (got_int || compl_interrupted)
+	if (got_int || ins_compl_interrupted())
 #else
 	if (got_int)
 #endif
@@ -5550,7 +5550,7 @@
 						)
     {
 #ifdef FEAT_INS_EXPAND
-	if (got_int || compl_interrupted)
+	if (got_int || ins_compl_interrupted())
 #else
 	if (got_int)
 #endif