[llvm] [llvm][mustache] Simplify debug logging (PR #159193)

[Mikael Holmen via llvm-commits]

================
@@ -329,6 +329,36 @@ struct Tag {
   size_t StartPosition = StringRef::npos;
 };
 
+static const char *tagKindToString(Tag::Kind K) {
----------------
mikaelholmen wrote:

Hi @ilovepi ,

These two new functions are unused in builds without asserts:
```
../lib/Support/Mustache.cpp:332:20: error: unused function 'tagKindToString' [-Werror,-Wunused-function]
  332 | static const char *tagKindToString(Tag::Kind K) {
      |                    ^~~~~~~~~~~~~~~
../lib/Support/Mustache.cpp:344:20: error: unused function 'jsonKindToString' [-Werror,-Wunused-function]
  344 | static const char *jsonKindToString(json::Value::Kind K) {
      |                    ^~~~~~~~~~~~~~~~
2 errors generated.
```


https://github.com/llvm/llvm-project/pull/159193