address feedback

src/tools/fuzzing/fuzz-stats.cpp

diff --git a/src/tools/fuzzing/fuzz-stats.cpp b/src/tools/fuzzing/fuzz-stats.cpp
index f03aa01..b024aa8 100644
--- a/src/tools/fuzzing/fuzz-stats.cpp
+++ b/src/tools/fuzzing/fuzz-stats.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 WebAssembly Community Group participants
+ * Copyright 2026 WebAssembly Community Group participants
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/tools/fuzzing/fuzz-stats.h

diff --git a/src/tools/fuzzing/fuzz-stats.h b/src/tools/fuzzing/fuzz-stats.h
index 5d25137..c3de610 100644
--- a/src/tools/fuzzing/fuzz-stats.h
+++ b/src/tools/fuzzing/fuzz-stats.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 WebAssembly Community Group participants
+ * Copyright 2026 WebAssembly Community Group participants
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -47,7 +47,8 @@
           const std::map<std::string, uint64_t>& funcMatches);
 
 // CRTP base class for visitors that collect fuzzing pattern statistics.
-template<typename SubType> struct Visitor : public PostWalker<SubType> {
+template<typename SubType>
+struct PatternCollectorBase : public PostWalker<SubType> {
   // Counts within the current function: pattern name -> count
   std::map<std::string, uint64_t> currentFuncCounts;
 

src/tools/fuzzing/fuzzing.cpp

diff --git a/src/tools/fuzzing/fuzzing.cpp b/src/tools/fuzzing/fuzzing.cpp
index 3338fab..d906b70 100644
--- a/src/tools/fuzzing/fuzzing.cpp
+++ b/src/tools/fuzzing/fuzzing.cpp
@@ -37,7 +37,11 @@
 
 namespace {
 
-struct FuzzStatsVisitor : public FuzzStats::Visitor<FuzzStatsVisitor> {
+struct FuzzStatsCollector
+  : public FuzzStats::PatternCollectorBase<FuzzStatsCollector> {
+  // Collect the occurrences of various cast instructions. Casts are
+  // particularly important for fuzzing. Meant as a sample for running
+  // experiments collecting other interesting patterns.
   void visitBrOn(BrOn* curr) {
     switch (curr->op) {
       case BrOnNull:
@@ -456,7 +460,7 @@
     mutateJSBoundary();
   }
 
-  FuzzStatsVisitor().collect(wasm);
+  FuzzStatsCollector().collect(wasm);
 }
 
 void TranslateToFuzzReader::setupMemory() {