[clang-format][NFC] Return early in isWordLike() for non-Verilog (#90363)

Author: owenca

clang/lib/Format/FormatToken.h

@@ -1623,10 +1623,10 @@ struct AdditionalKeywords {
   IdentifierInfo *kw_then;
 
   /// Returns \c true if \p Tok is a keyword or an identifier.
-  bool isWordLike(const FormatToken &Tok) const {
+  bool isWordLike(const FormatToken &Tok, bool IsVerilog = true) const {
     // getIdentifierinfo returns non-null for keywords as well as identifiers.
     return Tok.Tok.getIdentifierInfo() &&
-           !Tok.isOneOf(kw_verilogHash, kw_verilogHashHash, kw_apostrophe);
+           (!IsVerilog || !isVerilogKeywordSymbol(Tok));
   }
 
   /// Returns \c true if \p Tok is a true JavaScript identifier, returns
@@ -1755,6 +1755,10 @@ struct AdditionalKeywords {
     }
   }
 
+  bool isVerilogKeywordSymbol(const FormatToken &Tok) const {
+    return Tok.isOneOf(kw_verilogHash, kw_verilogHashHash, kw_apostrophe);
+  }
+
   bool isVerilogWordOperator(const FormatToken &Tok) const {
     return Tok.isOneOf(kw_before, kw_intersect, kw_dist, kw_iff, kw_inside,
                        kw_with);

clang/lib/Format/TokenAnnotator.cpp

@@ -4780,9 +4780,14 @@ bool TokenAnnotator::spaceRequiredBefore(const AnnotatedLine &Line,
   if (Left.Finalized)
     return Right.hasWhitespaceBefore();
 
+  const bool IsVerilog = Style.isVerilog();
+  assert(!IsVerilog || !IsCpp);
+
   // Never ever merge two words.
-  if (Keywords.isWordLike(Right) && Keywords.isWordLike(Left))
+  if (Keywords.isWordLike(Right, IsVerilog) &&
+      Keywords.isWordLike(Left, IsVerilog)) {
     return true;
+  }
 
   // Leave a space between * and /* to avoid C4138 `comment end` found outside
   // of comment.
@@ -5063,12 +5068,10 @@ bool TokenAnnotator::spaceRequiredBefore(const AnnotatedLine &Line,
         Right.is(TT_TemplateOpener)) {
       return true;
     }
-  } else if (Style.isVerilog()) {
+  } else if (IsVerilog) {
     // An escaped identifier ends with whitespace.
-    if (Style.isVerilog() && Left.is(tok::identifier) &&
-        Left.TokenText[0] == '\\') {
+    if (Left.is(tok::identifier) && Left.TokenText[0] == '\\')
       return true;
-    }
     // Add space between things in a primitive's state table unless in a
     // transition like `(0?)`.
     if ((Left.is(TT_VerilogTableItem) &&