[inspector] do not translate offset to line/column for coverage.

src/inspector/v8-profiler-agent-impl.cc

 // Copyright 2015 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.
 
 #include "src/inspector/v8-profiler-agent-impl.h"
 
 #include <vector>
 
 #include "src/base/atomicops.h"
 #include "src/inspector/protocol/Protocol.h"
@@ skipping 289 matching lines @@
     std::unique_ptr<protocol::Array<protocol::Profiler::FunctionCoverage>>
         functions =
             protocol::Array<protocol::Profiler::FunctionCoverage>::create();
     for (size_t j = 0; j < script_data.FunctionCount(); j++) {
       v8::debug::Coverage::FunctionData function_data =
           script_data.GetFunctionData(j);
       std::unique_ptr<protocol::Array<protocol::Profiler::CoverageRange>>
           ranges = protocol::Array<protocol::Profiler::CoverageRange>::create();
       // At this point we only have per-function coverage data, so there is
       // only one range per function.
-      v8::debug::Location start =
-          script->GetSourceLocation(function_data.StartOffset());
-      v8::debug::Location end =
-          script->GetSourceLocation(function_data.EndOffset());
       ranges->addItem(protocol::Profiler::CoverageRange::create()
-                          .setStartLineNumber(start.GetLineNumber())
-                          .setStartColumnNumber(start.GetColumnNumber())
-                          .setEndLineNumber(end.GetLineNumber())
-                          .setEndColumnNumber(end.GetColumnNumber())
                           .setStartOffset(function_data.StartOffset())
                           .setEndOffset(function_data.EndOffset())
                           .setCount(function_data.Count())
                           .build());
       functions->addItem(
           protocol::Profiler::FunctionCoverage::create()
               .setFunctionName(toProtocolString(
                   function_data.Name().FromMaybe(v8::Local<v8::String>())))
               .setRanges(std::move(ranges))
               .build());
@@ skipping 73 matching lines @@
   return m_profiler;
 }
 
 bool V8ProfilerAgentImpl::idleFinished() {
   m_idle = false;
   if (m_profiler) m_profiler->SetIdle(m_idle);
   return m_profiler;
 }
 
 }  // namespace v8_inspector