[clang] [llvm] [clang] Implement JSON formatted -ftime-report (PR #137737)

[Arthur Eubanks via cfe-commits]

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@@ -296,7 +296,14 @@ int cc1_main(ArrayRef<const char *> Argv, const char *Argv0, void *MainAddr) {
 
   // If any timers were active but haven't been destroyed yet, print their
   // results now.  This happens in -disable-free mode.
-  llvm::TimerGroup::printAll(llvm::errs());
+  // llvm::TimerGroup::printAll(llvm::errs());
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aeubanks wrote:

leftover code

https://github.com/llvm/llvm-project/pull/137737