fscache: remember the reparse tag for each entry

We will use this in the next commit to implement an FSCache-aware
version of is_mount_point().

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

compat/win32/fscache.c

@@ -46,6 +46,7 @@ static struct trace_key trace_fscache = TRACE_KEY_INIT(FSCACHE);
 struct fsentry {
 	struct hashmap_entry ent;
 	mode_t st_mode;
+	ULONG reparse_tag;
 	/* Pointer to the directory listing, or NULL for the listing itself. */
 	struct fsentry *list;
 	/* Pointer to the next file entry of the list. */
@@ -197,6 +198,10 @@ static struct fsentry *fseentry_create_entry(struct fscache *cache,
 
 	fse = fsentry_alloc(cache, list, buf, len);
 
+	fse->reparse_tag =
+		fdata->FileAttributes & FILE_ATTRIBUTE_REPARSE_POINT ?
+		fdata->EaSize : 0;
+
 	fse->st_mode = file_attr_to_st_mode(fdata->FileAttributes);
 	fse->dirent.d_type = S_ISDIR(fse->st_mode) ? DT_DIR : DT_REG;
 	fse->u.s.st_size = fdata->EndOfFile.LowPart |