Release Candidate [was: Re: Beta 2.087.0]

[Andre Pany]

On Saturday, 29 June 2019 at 22:21:42 UTC, Martin Nowak wrote:
> On Sunday, 16 June 2019 at 22:47:57 UTC, Martin Nowak wrote:
>> Glad to announce the first beta for the 2.087.0 release, ♥ to 
>> the 66 contributors.
>
> Release Candidate is live.
>
>> http://dlang.org/download.html#dmd_beta 
>> http://dlang.org/changelog/2.087.0.html
>>
>> As usual please report any bugs at
>> https://issues.dlang.org
>>
>> -Martin

Hi,

for this coding

```
import std;

void main()
{
     assert("abc123".all!(c => (c.isAlpha && c.isUpper == false) 
|| c.isDigit));
}
```


2.087.0 RC throws an error:

C:\D\dmd2\windows\bin\..\..\src\phobos\std\algorithm\searching.d(123): Error: static assert:  "_lambda isn't a unary predicate function for range.front"
unary.d(5):        instantiated from here: all!string

Is this a bug?

Kind regards
André