patch 9.2.0286: still some unnecessary (int) casts in alloc()

Problem:  still some unnecessary (int) casts in alloc()
Solution: Remove more unnecessary (int) casts before alloc() calls
          (Yasuhiro Matsumoto).

Follow-up to patch 9.2.0283. Remove remaining (int) casts in
vim9script.c and netbeans.c.

vim9script.c: lengths are derived from STRLEN() on file paths,
bounded by PATH_MAX. netbeans.c: all operands are already int,
so the (int) cast is redundant and no truncation can occur.

related: #19888
closes:  #19893

Signed-off-by: Yasuhiro Matsumoto <mattn.jp@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

src/netbeans.c

@@ -937,7 +937,7 @@ nb_partialremove(linenr_T lnum, colnr_T first, colnr_T last)
 	return;
     if (lastbyte >= oldlen)
 	lastbyte = oldlen - 1;
-    newtext = alloc(oldlen - (int)(lastbyte - first));
+    newtext = alloc(oldlen - (lastbyte - first));
     if (newtext == NULL)
 	return;
 

src/version.c

@@ -734,6 +734,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    286,
 /**/
     285,
 /**/

src/vim9script.c

@@ -460,7 +460,7 @@ handle_import(
 	{
 	    // Relative to current script: "./name.vim", "../../name.vim".
 	    len = STRLEN(si->sn_name) - STRLEN(tail) + STRLEN(tv.vval.v_string) + 2;
-	    from_name = alloc((int)len);
+	    from_name = alloc(len);
 	    if (from_name == NULL)
 		goto erret;
 	    vim_strncpy(from_name, si->sn_name, tail - si->sn_name);
@@ -485,7 +485,7 @@ handle_import(
 	char_u	    *from_name;
 
 	// Find file in "autoload" subdirs in 'runtimepath'.
-	from_name = alloc((int)len);
+	from_name = alloc(len);
 	if (from_name == NULL)
 	    goto erret;
 	vim_snprintf((char *)from_name, len, "autoload/%s", tv.vval.v_string);
@@ -512,7 +512,7 @@ handle_import(
 	char_u	    *from_name;
 
 	// Find file in "import" subdirs in 'runtimepath'.
-	from_name = alloc((int)len);
+	from_name = alloc(len);
 	if (from_name == NULL)
 	    goto erret;
 	vim_snprintf((char *)from_name, len, "import/%s", tv.vval.v_string);