[clang] [clang-format] Support of TableGen value annotations. (PR #80299)

[Björn Schäpers via cfe-commits]

================
@@ -1423,11 +1692,30 @@ class AnnotatingParser {
         if (!Tok->getPreviousNonComment())
           Line.IsContinuation = true;
       }
+      if (Style.isTableGen()) {
+        if (Tok->is(Keywords.kw_assert)) {
+          if (!parseTableGenValue())
+            return false;
+        } else if (Tok->isOneOf(Keywords.kw_def, Keywords.kw_defm) &&
+                   (!Tok->Next ||
+                    !Tok->Next->isOneOf(tok::colon, tok::l_brace))) {
+          // The case NameValue appears.
+          if (!parseTableGenValue(true))
+            return false;
+        }
+      }
       break;
     case tok::arrow:
       if (Tok->Previous && Tok->Previous->is(tok::kw_noexcept))
         Tok->setType(TT_TrailingReturnArrow);
       break;
+    case tok::equal:
+      // In TableGen, there must be a value after "=";
+      if (Style.isTableGen()) {
+        if (!parseTableGenValue())
----------------
HazardyKnusperkeks wrote:

```suggestion
      if (Style.isTableGen() && !parseTableGenValue())
```

https://github.com/llvm/llvm-project/pull/80299