patch 8.1.2332: missing file in refactoring

Problem:    Missing file in refactoring.
Solution:   Update missing file.
diff --git a/src/search.c b/src/search.c
index 5949116..ed4ea0d 100644
--- a/src/search.c
+++ b/src/search.c
@@ -1918,6 +1918,102 @@
 }
 
 /*
+ * Check matchpairs option for "*initc".
+ * If there is a match set "*initc" to the matching character and "*findc" to
+ * the opposite character.  Set "*backwards" to the direction.
+ * When "switchit" is TRUE swap the direction.
+ */
+    static void
+find_mps_values(
+    int	    *initc,
+    int	    *findc,
+    int	    *backwards,
+    int	    switchit)
+{
+    char_u	*ptr;
+
+    ptr = curbuf->b_p_mps;
+    while (*ptr != NUL)
+    {
+	if (has_mbyte)
+	{
+	    char_u *prev;
+
+	    if (mb_ptr2char(ptr) == *initc)
+	    {
+		if (switchit)
+		{
+		    *findc = *initc;
+		    *initc = mb_ptr2char(ptr + mb_ptr2len(ptr) + 1);
+		    *backwards = TRUE;
+		}
+		else
+		{
+		    *findc = mb_ptr2char(ptr + mb_ptr2len(ptr) + 1);
+		    *backwards = FALSE;
+		}
+		return;
+	    }
+	    prev = ptr;
+	    ptr += mb_ptr2len(ptr) + 1;
+	    if (mb_ptr2char(ptr) == *initc)
+	    {
+		if (switchit)
+		{
+		    *findc = *initc;
+		    *initc = mb_ptr2char(prev);
+		    *backwards = FALSE;
+		}
+		else
+		{
+		    *findc = mb_ptr2char(prev);
+		    *backwards = TRUE;
+		}
+		return;
+	    }
+	    ptr += mb_ptr2len(ptr);
+	}
+	else
+	{
+	    if (*ptr == *initc)
+	    {
+		if (switchit)
+		{
+		    *backwards = TRUE;
+		    *findc = *initc;
+		    *initc = ptr[2];
+		}
+		else
+		{
+		    *backwards = FALSE;
+		    *findc = ptr[2];
+		}
+		return;
+	    }
+	    ptr += 2;
+	    if (*ptr == *initc)
+	    {
+		if (switchit)
+		{
+		    *backwards = FALSE;
+		    *findc = *initc;
+		    *initc = ptr[-2];
+		}
+		else
+		{
+		    *backwards = TRUE;
+		    *findc =  ptr[-2];
+		}
+		return;
+	    }
+	    ++ptr;
+	}
+	if (*ptr == ',')
+	    ++ptr;
+    }
+}
+
+/*
  * findmatchlimit -- find the matching paren or brace, if it exists within
  * maxtravel lines of the cursor.  A maxtravel of 0 means search until falling
  * off the edge of the file.