Model exceptional edges from call nodes in TurboFan.

src/compiler/common-operator.cc

Index: src/compiler/common-operator.cc
diff --git a/src/compiler/common-operator.cc b/src/compiler/common-operator.cc
index eda99d4fee0d2a94adc4bbc47514705ef99d64f3..9a16a403f8cc5cd89d4277db0b5df9373a8c9348 100644
--- a/src/compiler/common-operator.cc
+++ b/src/compiler/common-operator.cc
@@ -121,6 +121,8 @@ size_t ProjectionIndexOf(const Operator* const op) {
   V(End, Operator::kKontrol, 0, 0, 1, 0, 0, 0)             \
   V(IfTrue, Operator::kKontrol, 0, 0, 1, 0, 0, 1)          \
   V(IfFalse, Operator::kKontrol, 0, 0, 1, 0, 0, 1)         \
+  V(IfException, Operator::kKontrol, 0, 0, 1, 0, 0, 1)     \
+  V(IfSuccess, Operator::kKontrol, 0, 0, 1, 0, 0, 1)       \
   V(Throw, Operator::kFoldable, 1, 1, 1, 0, 0, 1)          \
   V(Return, Operator::kNoThrow, 1, 1, 1, 0, 0, 1)          \
   V(OsrNormalEntry, Operator::kFoldable, 0, 1, 1, 0, 1, 1) \
@@ -500,7 +502,8 @@ const Operator* CommonOperatorBuilder::Call(const CallDescriptor* descriptor) {
               Operator::ZeroIfPure(descriptor->properties()),
               Operator::ZeroIfPure(descriptor->properties()),
               descriptor->ReturnCount(),
-              Operator::ZeroIfPure(descriptor->properties()), 0, descriptor) {}
+              Operator::ZeroIfPure(descriptor->properties()),
+              Operator::ZeroIfNoThrow(descriptor->properties()), descriptor) {}
 
     void PrintParameter(std::ostream& os) const OVERRIDE {
       os << "[" << *parameter() << "]";