Fix 3 MSVC warnings:

'void (__cdecl *)()' differs in parameter lists from 'void (__cdecl *)(void)'

atexit really expects a "void f(void)" function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132061 91177308-0d34-0410-b5e6-96231b3b80d8

runtime/libprofile/BasicBlockTracing.c

@@ -30,7 +30,7 @@ static void WriteAndFlushBBTraceData () {
 /* BBTraceAtExitHandler - When the program exits, just write out any remaining 
  * data and free the trace buffer.
  */
-static void BBTraceAtExitHandler() {
+static void BBTraceAtExitHandler(void) {
   WriteAndFlushBBTraceData ();
   free (ArrayStart);
 }

runtime/libprofile/EdgeProfiling.c

@@ -22,7 +22,7 @@ static unsigned NumElements;
 /* EdgeProfAtExitHandler - When the program exits, just write out the profiling
  * data.
  */
-static void EdgeProfAtExitHandler() {
+static void EdgeProfAtExitHandler(void) {
   /* Note that if this were doing something more intelligent with the
    * instrumentation, we could do some computation here to expand what we
    * collected into simple edge profiles.  Since we directly count each edge, we

runtime/libprofile/OptimalEdgeProfiling.c

@@ -22,7 +22,7 @@ static unsigned NumElements;
 /* OptEdgeProfAtExitHandler - When the program exits, just write out the
  * profiling data.
  */
-static void OptEdgeProfAtExitHandler() {
+static void OptEdgeProfAtExitHandler(void) {
   /* Note that, although the array has a counter for each edge, not all
    * counters are updated, the ones that are not used are initialised with -1.
    * When loading this information the counters with value -1 have to be