Deprecate useless CompilationInfo::IsOptimizable predicate.

src/full-codegen/ia32/full-codegen-ia32.cc

Index: src/full-codegen/ia32/full-codegen-ia32.cc
diff --git a/src/full-codegen/ia32/full-codegen-ia32.cc b/src/full-codegen/ia32/full-codegen-ia32.cc
index 5aa64094413334f8c34215394442f3097c711dd9..2ed198b18403844254ac96453605952a113a650d 100644
--- a/src/full-codegen/ia32/full-codegen-ia32.cc
+++ b/src/full-codegen/ia32/full-codegen-ia32.cc
@@ -746,7 +746,7 @@ void FullCodeGenerator::PrepareForBailoutBeforeSplit(Expression* expr,
   // Only prepare for bailouts before splits if we're in a test
   // context. Otherwise, we let the Visit function deal with the
   // preparation to avoid preparing with the same AST id twice.
-  if (!context()->IsTest() || !info_->IsOptimizable()) return;
+  if (!context()->IsTest()) return;
 
   Label skip;
   if (should_normalize) __ jmp(&skip, Label::kNear);