[turbofan] Introduce prediction for exception handlers.

src/compiler/ia32/instruction-selector-ia32.cc

Index: src/compiler/ia32/instruction-selector-ia32.cc
diff --git a/src/compiler/ia32/instruction-selector-ia32.cc b/src/compiler/ia32/instruction-selector-ia32.cc
index 8343dc1a09326f6d297a01e52521ed816ea5a499..82a6650bdda3959e9a70f6fc24b346d71b18b786 100644
--- a/src/compiler/ia32/instruction-selector-ia32.cc
+++ b/src/compiler/ia32/instruction-selector-ia32.cc
@@ -843,6 +843,9 @@ void InstructionSelector::VisitCall(Node* node, BasicBlock* handler) {
   // Pass label of exception handler block.
   CallDescriptor::Flags flags = descriptor->flags();
   if (handler) {
+    DCHECK_EQ(IrOpcode::kIfException, handler->front()->opcode());
+    bool caught_locally = OpParameter<bool>(handler->front());
+    if (caught_locally) flags |= CallDescriptor::kHasLocalCatchHandler;
     flags |= CallDescriptor::kHasExceptionHandler;
     buffer.instruction_args.push_back(g.Label(handler));
   }