can accept case condition: { } break;

[dascritch]

I had to write this because of very long case/break , for using folding functions of my editor (kde4 enviro):

switch (variable)
{
case condition1 :
{
[... 412 lines]
}
break;

case condition2 :
{
    [... 96 lines]
}
break;

}

this lead to :

Line ### : {
Expected to see a statement and instead saw a block.

[valueof]

What do { ... } accomplish in your examples? As I can see it could as well be:

switch (variable) {
case cond:
  [ 412 lines ]
[ ... ]
}

I don't see any disadvantages from using blocks here but I also don't see any advantages and I need to prioritize tickets.

[dascritch]

I use kate (kde4 editor) and it helps it to see blocks.
There is also the case when I disable temporary a condition.

By example

// if (!stabe_condition)
{
[ 412 lines ]
}

This is not bogus, and you don't need to comment the brackets only for that.