Pass an isolate to RelocInfo

src/x64/assembler-x64.cc

Index: src/x64/assembler-x64.cc
diff --git a/src/x64/assembler-x64.cc b/src/x64/assembler-x64.cc
index 36187558770dcd4ddd2171eccfce51b300f2b99e..9626efc4a760acaf84176bd0cd77770af790f9ad 100644
--- a/src/x64/assembler-x64.cc
+++ b/src/x64/assembler-x64.cc
@@ -389,6 +389,7 @@ void Assembler::GrowBuffer() {
 
   // Set up new buffer.
   desc.buffer = NewArray<byte>(desc.buffer_size);
+  desc.origin = this;
   desc.instr_size = pc_offset();
   desc.reloc_size =
       static_cast<int>((buffer_ + buffer_size_) - (reloc_info_writer.pos()));
@@ -4116,7 +4117,7 @@ void Assembler::RecordRelocInfo(RelocInfo::Mode rmode, intptr_t data) {
     // Don't record psuedo relocation info for code age sequence mode.
     return;
   }
-  RelocInfo rinfo(pc_, rmode, data, NULL);
+  RelocInfo rinfo(isolate(), pc_, rmode, data, NULL);
   reloc_info_writer.Write(&rinfo);
 }