Disentangle assembler from isolate.

src/compiler/ia32/code-generator-ia32.cc

Index: src/compiler/ia32/code-generator-ia32.cc
diff --git a/src/compiler/ia32/code-generator-ia32.cc b/src/compiler/ia32/code-generator-ia32.cc
index 01a26c21ee9d6b55a56478172cc7e2105dd6c4a5..b49f614f33a92716a29d2684c9e7e3a5bc9434a1 100644
--- a/src/compiler/ia32/code-generator-ia32.cc
+++ b/src/compiler/ia32/code-generator-ia32.cc
@@ -2214,7 +2214,9 @@ CodeGenerator::CodeGenResult CodeGenerator::AssembleDeoptimizerCall(
   Address deopt_entry = Deoptimizer::GetDeoptimizationEntry(
       isolate(), deoptimization_id, bailout_type);
   if (deopt_entry == nullptr) return kTooManyDeoptimizationBailouts;
-  __ RecordDeoptReason(deoptimization_reason, pos, deoptimization_id);
+  if (isolate()->NeedsSourcePositionsForProfiling()) {
+    __ RecordDeoptReason(deoptimization_reason, pos, deoptimization_id);
+  }
   __ call(deopt_entry, RelocInfo::RUNTIME_ENTRY);
   return kSuccess;
 }