tvplanit: Use "random(High(Int64))" instead of "random($7FFFFFFF)" in ID generator for IniDatastore.

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@4848 8e941d3f-bd1b-0410-a28a-d453659cc2b4

components/tvplanit/source/vpinids.pas

@@ -167,7 +167,7 @@ end;
 function TVpIniDatastore.GetNextID(TableName: string): Int64;
 begin
   repeat
-    Result := Random($7FFFFFFF);
+    Result := Random(High(Int64));
   until UniqueID(Result);
 end;