[coverage] Block coverage with support for IfStatements

src/debug/debug.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_DEBUG_DEBUG_H_
 #define V8_DEBUG_DEBUG_H_
 
 #include "src/allocation.h"
 #include "src/assembler.h"
 #include "src/base/atomicops.h"
@@ skipping 318 matching lines @@
 
   bool IsBlackboxed(Handle<SharedFunctionInfo> shared);
 
   void SetDebugDelegate(debug::DebugDelegate* delegate, bool pass_ownership);
 
   // Returns whether the operation succeeded.
   bool EnsureBreakInfo(Handle<SharedFunctionInfo> shared);
   void CreateBreakInfo(Handle<SharedFunctionInfo> shared);
   Handle<DebugInfo> GetOrCreateDebugInfo(Handle<SharedFunctionInfo> shared);
 
+  void InstallCoverageInfo(Handle<SharedFunctionInfo> shared,
+                           Handle<CoverageInfo> coverage_info);
+  void RemoveAllCoverageInfos();
+
   template <typename C>
   bool CompileToRevealInnerFunctions(C* compilable);
 
   // This function is used in FunctionNameUsing* tests.
   Handle<Object> FindSharedFunctionInfoInScript(Handle<Script> script,
                                                 int position);
 
   static Handle<Object> GetSourceBreakLocations(
       Handle<SharedFunctionInfo> shared,
       BreakPositionAlignment position_aligment);
@@ skipping 157 matching lines @@
 
   inline void AssertDebugContext() {
     DCHECK(isolate_->context() == *debug_context());
     DCHECK(in_debug_scope());
   }
 
   void ThreadInit();
 
   void PrintBreakLocation();
 
+  // Wraps logic for clearing and maybe freeing all debug infos.
+  typedef std::function<bool(Handle<DebugInfo>)> DebugInfoClearFunction;
+  void ClearAllDebugInfos(DebugInfoClearFunction clear_function);
+
   void RemoveBreakInfoAndMaybeFree(Handle<DebugInfo> debug_info);
   void FindDebugInfo(Handle<DebugInfo> debug_info, DebugInfoListNode** prev,
                      DebugInfoListNode** curr);
   void FreeDebugInfoListNode(DebugInfoListNode* prev, DebugInfoListNode* node);
 
   // Global handles.
   Handle<Context> debug_context_;
 
   debug::DebugDelegate* debug_delegate_ = nullptr;
   bool owns_debug_delegate_ = false;
@@ skipping 282 matching lines @@
                                   Handle<Code> code);
   static bool DebugBreakSlotIsPatched(Address pc);
   static void ClearDebugBreakSlot(Isolate* isolate, Address pc);
 };
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_DEBUG_DEBUG_H_