[turbofan] Introduce prediction for exception handlers.

src/compiler/code-generator.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COMPILER_CODE_GENERATOR_H_
 #define V8_COMPILER_CODE_GENERATOR_H_
 
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/instruction.h"
 #include "src/deoptimizer.h"
@@ skipping 142 matching lines @@
           translation_id_(translation_id),
           pc_offset_(pc_offset) {}
 
    private:
     BailoutId bailout_id_;
     int translation_id_;
     int pc_offset_;
   };
 
   struct HandlerInfo {
+    bool caught_locally;
     Label* handler;
     int pc_offset;
   };
 
   friend class OutOfLineCode;
 
   Frame* const frame_;
   Linkage* const linkage_;
   InstructionSequence* const code_;
   CompilationInfo* const info_;
@@ skipping 12 matching lines @@
   OutOfLineCode* ools_;
   int osr_pc_offset_;
   bool needs_frame_;
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_CODE_GENERATOR_H