bolshakov-a added inline comments.

================
Comment at: clang/lib/Index/USRGeneration.cpp:1032
+  case TemplateArgument::UncommonValue:
+    // FIXME: Visit value.
+    break;
----------------
bnbarham wrote:
> akyrtzi wrote:
> > erichkeane wrote:
> > > bolshakov-a wrote:
> > > > aaron.ballman wrote:
> > > > > Any particular reason this isn't being handled now?
> > > > I need some guidance here. Which characters are allowed in the USR? 
> > > > Could the mangling algorithm from 
> > > > `CXXNameMangler::mangleValueInTemplateArg` be moved into some common 
> > > > place and reused here?
> > > I have no idea what is valid here.  BUT @akyrtzi and @gribozavr (or 
> > > @gribozavr2 ?) seem to be the ones that touch these files the most?
> > Adding @bnbarham to review the `Index` changes.
> Just visiting the underlying type seems reasonable, ie. 
> `VisitType(Arg.getUncommonValueType());`. If it needed to be differentiated 
> between a `TemplateArgument::Type` you could add a prefix character (eg. 
> `U`), but that doesn't seem needed to me.
Doesn't the holded value be added so as to distinguish e.g. `Tpl<1.5>` from 
`Tpl<2.5>`?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D140996/new/

https://reviews.llvm.org/D140996

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