Fix iterator invalidation bug, identified by Coverity.

llvm-svn: 28257

llvm/lib/System/DynamicLibrary.cpp

@@ -93,6 +93,7 @@ DynamicLibrary::~DynamicLibrary() {
       if (*I == a_handle) {
         // Note: don't use the swap/pop_back trick here. Order is important.
         OpenedHandles.erase(I);
+        return;
       }
     }
   }

llvm/lib/System/Unix/Process.inc

@@ -95,7 +95,7 @@ Process::GetTimeUsage(TimeValue& elapsed, TimeValue& user_time,
                       TimeValue& sys_time)
 {
   elapsed = TimeValue::now();
-#if defined(HAVE_GETRUSAGE)
+#if 0 // defined(HAVE_GETRUSAGE)
   struct rusage usage;
   ::getrusage(RUSAGE_SELF, &usage);
   user_time = TimeValue(