Make CPU profiler unwind the inlined functions stack.

src/profiler/profile-generator.h

Index: src/profiler/profile-generator.h
diff --git a/src/profiler/profile-generator.h b/src/profiler/profile-generator.h
index 3c976d62924b3a27f032f92439c75b027aff2e3a..194b4909299c2d691a7a7660fe77f5dcd968593b 100644
--- a/src/profiler/profile-generator.h
+++ b/src/profiler/profile-generator.h
@@ -99,7 +99,11 @@ class CodeEntry {
 
   int GetSourceLine(int pc_offset) const;
 
+  void AddInlineStack(int pc_offset, std::vector<CodeEntry*>& inline_stack);
+  const std::vector<CodeEntry*>* GetInlineStack(int pc_offset) const;
+
   Address instruction_start() const { return instruction_start_; }
+  Logger::LogEventsAndTags tag() const { return TagField::decode(bit_field_); }
 
   static const char* const kEmptyNamePrefix;
   static const char* const kEmptyResourceName;
@@ -109,7 +113,6 @@ class CodeEntry {
  private:
   class TagField : public BitField<Logger::LogEventsAndTags, 0, 8> {};
   class BuiltinIdField : public BitField<Builtins::Name, 8, 8> {};
-  Logger::LogEventsAndTags tag() const { return TagField::decode(bit_field_); }
 
   uint32_t bit_field_;
   const char* name_prefix_;
@@ -125,6 +128,8 @@ class CodeEntry {
   size_t pc_offset_;
   JITLineInfoTable* line_info_;
   Address instruction_start_;
+  // Should be an unordered_map, but it doesn't currently work on Win & MacOS.
+  std::map<int, std::vector<CodeEntry*>> inline_locations_;
 
   std::vector<InlinedFunctionInfo> inlined_function_infos_;
 
@@ -191,7 +196,7 @@ class ProfileTree {
   ~ProfileTree();
 
   ProfileNode* AddPathFromEnd(
-      const Vector<CodeEntry*>& path,
+      const std::vector<CodeEntry*>& path,
       int src_line = v8::CpuProfileNode::kNoLineNumberInfo,
       bool update_stats = true);
   ProfileNode* root() const { return root_; }
@@ -225,7 +230,7 @@ class CpuProfile {
   CpuProfile(Isolate* isolate, const char* title, bool record_samples);
 
   // Add pc -> ... -> main() call path to the profile.
-  void AddPath(base::TimeTicks timestamp, const Vector<CodeEntry*>& path,
+  void AddPath(base::TimeTicks timestamp, const std::vector<CodeEntry*>& path,
                int src_line, bool update_stats);
   void CalculateTotalTicksAndSamplingRate();
 
@@ -334,8 +339,8 @@ class CpuProfilesCollection {
 
   // Called from profile generator thread.
   void AddPathToCurrentProfiles(base::TimeTicks timestamp,
-                                const Vector<CodeEntry*>& path, int src_line,
-                                bool update_stats);
+                                const std::vector<CodeEntry*>& path,
+                                int src_line, bool update_stats);
 
   // Limits the number of profiles that can be simultaneously collected.
   static const int kMaxSimultaneousProfiles = 100;