Make whether or not a Code object should be created by masm explicit

src/ia32/codegen-ia32.cc

Index: src/ia32/codegen-ia32.cc
diff --git a/src/ia32/codegen-ia32.cc b/src/ia32/codegen-ia32.cc
index 8e068f6a7e6d84f59722228c73bcc9a9be066fbd..ef5bb979b1e39020f02a5fcdd03bda72e4765e05 100644
--- a/src/ia32/codegen-ia32.cc
+++ b/src/ia32/codegen-ia32.cc
@@ -41,7 +41,7 @@ UnaryMathFunctionWithIsolate CreateExpFunction(Isolate* isolate) {
   if (buffer == nullptr) return nullptr;
   ExternalReference::InitializeMathExpData();
 
-  MacroAssembler masm(nullptr, buffer, static_cast<int>(actual_size));
+  MacroAssembler masm(isolate, buffer, static_cast<int>(actual_size), false);
   // esp[1 * kPointerSize]: raw double input
   // esp[0 * kPointerSize]: return address
   {
@@ -76,7 +76,7 @@ UnaryMathFunction CreateSqrtFunction() {
   byte* buffer =
       static_cast<byte*>(base::OS::Allocate(1 * KB, &actual_size, true));
   if (buffer == NULL) return &std::sqrt;
-  MacroAssembler masm(NULL, buffer, static_cast<int>(actual_size));
+  MacroAssembler masm(NULL, buffer, static_cast<int>(actual_size), false);
   // esp[1 * kPointerSize]: raw double input
   // esp[0 * kPointerSize]: return address
   // Move double input into registers.
@@ -191,7 +191,7 @@ MemMoveFunction CreateMemMoveFunction() {
   byte* buffer =
       static_cast<byte*>(base::OS::Allocate(1 * KB, &actual_size, true));
   if (buffer == NULL) return NULL;
-  MacroAssembler masm(NULL, buffer, static_cast<int>(actual_size));
+  MacroAssembler masm(NULL, buffer, static_cast<int>(actual_size), false);
   LabelConverter conv(buffer);
 
   // Generated code is put into a fixed, unmovable buffer, and not into