X87: [turbofan] Add comments to CodeAssembler.

src/compiler/x87/code-generator-x87.cc

Index: src/compiler/x87/code-generator-x87.cc
diff --git a/src/compiler/x87/code-generator-x87.cc b/src/compiler/x87/code-generator-x87.cc
index e862dc5a687413a825bd44699e9d82c0ef5dc1fd..dd8be23772591c9e34a71618df4210ce555795d6 100644
--- a/src/compiler/x87/code-generator-x87.cc
+++ b/src/compiler/x87/code-generator-x87.cc
@@ -606,6 +606,11 @@ CodeGenerator::CodeGenResult CodeGenerator::AssembleArchInstruction(
     case kArchTableSwitch:
       AssembleArchTableSwitch(instr);
       break;
+    case kArchComment: {
+      Address comment_string = i.InputExternalReference(0).address();
+      __ RecordComment(reinterpret_cast<const char*>(comment_string));
+      break;
+    }
     case kArchDebugBreak:
       __ int3();
       break;