[PATCH] D29724: [Driver] Report available language standards on user error

[Paweł Żukowski via Phabricator via cfe-commits]

idlecode added a comment.

Indeed, thanks :)
I ran `make check-all` and had no errors so I thought there are no tests.



================
Comment at: lib/Frontend/CompilerInvocation.cpp:1709
+        Diags.Report(diag::note_drv_supported_value_with_description)
+          << Std.getName() << Std.getDescription();
+      }
----------------
ahatanak wrote:
> Is it possible to change the diagnostic so that it's easier to tell which part is the supported value and which part is the description?
> 
> The diagnostic looks like this, and I found it a little hard to tell at a quick glance:
> 
> "c89 - ISO C 1990" 
Sure, I have tried few formats with quotes/colons but how about this (a bit verbose) version:
```
note: supported values are:
note: 'c89' for standard 'ISO C 1990'
note: 'c90' for standard 'ISO C 1990'
note: 'iso9899:1990' for standard 'ISO C 1990'
...
```
What do you think about it? Do you have any suggestions?


https://reviews.llvm.org/D29724