This patch is the propagation version of https://codereview.chromium.org/10824032 patch

src/assembler.cc

Index: src/assembler.cc
===================================================================
--- src/assembler.cc	(revision 13276)
+++ src/assembler.cc	(working copy)
@@ -1518,6 +1518,13 @@
     gdbjit_lineinfo_->SetPosition(assembler_->pc_offset(), pos, false);
   }
 #endif
+  if (jit_code_event_line_info_ != NULL) {
+    LOG_CODE_EVENT(this->assembler()->isolate(),
+                   CodeLinePosInfoAddEvent(jit_code_event_line_info_,
+                                           assembler_->pc_offset(),
+                                           pos,
+                                           false));
+  }
 }
 
 
@@ -1530,6 +1537,13 @@
     gdbjit_lineinfo_->SetPosition(assembler_->pc_offset(), pos, true);
   }
 #endif
+  if (jit_code_event_line_info_ != NULL) {
+    LOG_CODE_EVENT(this->assembler()->isolate(),
+                   CodeLinePosInfoAddEvent(jit_code_event_line_info_,
+                                           assembler_->pc_offset(),
+                                           pos,
+                                           true));
+  }
 }