[clang] [llvm] [OpenMP]Initial parsing/sema support for target_device selector set (PR #118471)

[Alexey Bataev via cfe-commits]

================
@@ -888,7 +888,18 @@ void Parser::parseOMPTraitPropertyKind(OMPTraitProperty 
&TIProperty,
   TIProperty.Kind = TraitProperty::invalid;
 
   SourceLocation NameLoc = Tok.getLocation();
-  StringRef Name = getNameFromIdOrString(*this, Tok, CONTEXT_TRAIT_LVL);
+  StringRef Name;
+  if (Selector == llvm::omp::TraitSelector::target_device_device_num) {
+    Name = "number";
+    TIProperty.Kind = getOpenMPContextTraitPropertyKind(Set, Selector, Name);
+    ExprResult DeviceNumExprResult = ParseExpression();
+    if (!DeviceNumExprResult.isInvalid()) {
----------------
alexey-bataev wrote:

```suggestion
    if (DeviceNumExprResult.isUsable()) {
```


https://github.com/llvm/llvm-project/pull/118471
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