[fullcodegen] Remove exception handling support.

src/frames.h

 // Copyright 2012 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_FRAMES_H_
 #define V8_FRAMES_H_
 
 #include "src/allocation.h"
 #include "src/handles.h"
 #include "src/safepoint-table.h"
@@ skipping 48 matching lines @@
 
   Isolate* isolate_;
 
   static const int kInnerPointerToCodeCacheSize = 1024;
   InnerPointerToCodeCacheEntry cache_[kInnerPointerToCodeCacheSize];
 
   DISALLOW_COPY_AND_ASSIGN(InnerPointerToCodeCache);
 };
 
 
-// Every try-block pushes the context register.
-class TryBlockConstant : public AllStatic {
- public:
-  static const int kElementCount = 1;
-};
-
-
 class StackHandlerConstants : public AllStatic {
  public:
   static const int kNextOffset = 0 * kPointerSize;
 
   static const int kSize = kNextOffset + kPointerSize;
   static const int kSlotCount = kSize >> kPointerSizeLog2;
 };
 
 
 class StackHandler BASE_EMBEDDED {
@@ skipping 801 matching lines @@
              int index) const override;
 
   // Determine the code for the frame.
   Code* unchecked_code() const override;
 
   // Return a list with JSFunctions of this frame.
   virtual void GetFunctions(List<JSFunction*>* functions) const;
 
   // Lookup exception handler for current {pc}, returns -1 if none found. Also
   // returns data associated with the handler site specific to the frame type:
-  //  - JavaScriptFrame : Data is the stack depth at entry of the try-block.
   //  - OptimizedFrame  : Data is the stack slot count of the entire frame.
   //  - InterpretedFrame: Data is the register index holding the context.
   virtual int LookupExceptionHandlerInTable(
       int* data, HandlerTable::CatchPrediction* prediction);
 
   // Architecture-specific register description.
   static Register fp_register();
   static Register context_register();
   static Register constant_pool_pointer_register();
 
@@ skipping 460 matching lines @@
 
 
 // Reads all frames on the current stack and copies them into the current
 // zone memory.
 Vector<StackFrame*> CreateStackMap(Isolate* isolate, Zone* zone);
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_FRAMES_H_