`CompletionTests.testBug343342` makes no sense

It tests completion at the `|` in the following CU. The linked issue is about completion in case, so I expect this is a bug.

```java
package |test;
public class Try {
void f(int a){
String xyz = null;
final String xyzz = null;
switch (a){
case xy : break;
}
}
}
```

I think this is what is intended to be tested (completion at the `|`):

```java
package test;
public class Try {
void f(int a){
String xyz = null;
final String xyzz = null;
switch (a){
case xy| : break;
}
}
}
```