[clang] [clang][bytecode] Support compile-time exceptions (PR #189410)

[Yanzuo Liu via cfe-commits]

================
@@ -60,6 +60,30 @@ static bool exceedsArraySizeLimit(const LangOptions &LangOpts,
   return Limit != 0 && NumElems > Limit;
 }
 
+[[maybe_unused]] static bool blockEndsInReturn(const Stmt *S) {
+  if (isa<ReturnStmt>(S))
+    return true;
+
+  if (const auto *CS = dyn_cast<CompoundStmt>(S); CS && !CS->body_empty())
+    return isa<ReturnStmt>(CS->body_back());
+
+  return false;
+}
+
+const CXXConstructorDecl *findCopyCtor(const CXXRecordDecl *RD,
----------------
zwuis wrote:

```suggestion
static const CXXConstructorDecl *findCopyCtor(const CXXRecordDecl *RD,
```


https://github.com/llvm/llvm-project/pull/189410