Update clang to r339409.

Change-Id: I800772d2d838223be1f6b40d490c4591b937fca2
diff --git a/linux-x64/clang/include/llvm-c/ExecutionEngine.h b/linux-x64/clang/include/llvm-c/ExecutionEngine.h
index 51830fe..49ae6fe 100644
--- a/linux-x64/clang/include/llvm-c/ExecutionEngine.h
+++ b/linux-x64/clang/include/llvm-c/ExecutionEngine.h
@@ -182,6 +182,13 @@
 
 void LLVMDisposeMCJITMemoryManager(LLVMMCJITMemoryManagerRef MM);
 
+/*===-- JIT Event Listener functions -------------------------------------===*/
+
+LLVMJITEventListenerRef LLVMCreateGDBRegistrationListener(void);
+LLVMJITEventListenerRef LLVMCreateIntelJITEventListener(void);
+LLVMJITEventListenerRef LLVMCreateOprofileJITEventListener(void);
+LLVMJITEventListenerRef LLVMCreatePerfJITEventListener(void);
+
 /**
  * @}
  */