[compiler] Ask compilation info, not isolate, about source positions flag.

R=jarin@chromium.org

Bug: v8:6048
Change-Id: I685a629dec46d40c3518096b0a5d3901048e0bee
Reviewed-on: https://chromium-review.googlesource.com/519165Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45630}

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

@@ -2750,7 +2750,7 @@ CodeGenerator::CodeGenResult CodeGenerator::AssembleDeoptimizerCall(
   // actual final call site and just bl'ing to it here, similar to what we do
   // in the lithium backend.
   if (deopt_entry == nullptr) return kTooManyDeoptimizationBailouts;
-  if (isolate()->NeedsSourcePositionsForProfiling()) {
+  if (info()->is_source_positions_enabled()) {
     __ RecordDeoptReason(deoptimization_reason, pos, deoptimization_id);
   }
   __ Call(deopt_entry, RelocInfo::RUNTIME_ENTRY);

src/compiler/arm64/code-generator-arm64.cc

@@ -1927,7 +1927,7 @@ CodeGenerator::CodeGenResult CodeGenerator::AssembleDeoptimizerCall(
   Address deopt_entry = Deoptimizer::GetDeoptimizationEntry(
       isolate(), deoptimization_id, bailout_type);
   if (deopt_entry == nullptr) return kTooManyDeoptimizationBailouts;
-  if (isolate()->NeedsSourcePositionsForProfiling()) {
+  if (info()->is_source_positions_enabled()) {
     __ RecordDeoptReason(deoptimization_reason, pos, deoptimization_id);
   }
   __ Call(deopt_entry, RelocInfo::RUNTIME_ENTRY);

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

@@ -2282,7 +2282,7 @@ CodeGenerator::CodeGenResult CodeGenerator::AssembleDeoptimizerCall(
   Address deopt_entry = Deoptimizer::GetDeoptimizationEntry(
       isolate(), deoptimization_id, bailout_type);
   if (deopt_entry == nullptr) return kTooManyDeoptimizationBailouts;
-  if (isolate()->NeedsSourcePositionsForProfiling()) {
+  if (info()->is_source_positions_enabled()) {
     __ RecordDeoptReason(deoptimization_reason, pos, deoptimization_id);
   }
   __ call(deopt_entry, RelocInfo::RUNTIME_ENTRY);

src/compiler/x64/code-generator-x64.cc

@@ -2787,7 +2787,7 @@ CodeGenerator::CodeGenResult CodeGenerator::AssembleDeoptimizerCall(
   Address deopt_entry = Deoptimizer::GetDeoptimizationEntry(
       isolate(), deoptimization_id, bailout_type);
   if (deopt_entry == nullptr) return kTooManyDeoptimizationBailouts;
-  if (isolate()->NeedsSourcePositionsForProfiling()) {
+  if (info()->is_source_positions_enabled()) {
     __ RecordDeoptReason(deoptimization_reason, pos, deoptimization_id);
   }
   __ call(deopt_entry, RelocInfo::RUNTIME_ENTRY);