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

src/x87/codegen-x87.cc

Index: src/x87/codegen-x87.cc
diff --git a/src/x87/codegen-x87.cc b/src/x87/codegen-x87.cc
index f4751d821d74af032a996aa748d1176c5457cdd9..f9dc62b1c1130f43dbfee54dd91c5f29414c9d61 100644
--- a/src/x87/codegen-x87.cc
+++ b/src/x87/codegen-x87.cc
@@ -46,7 +46,7 @@ UnaryMathFunction CreateSqrtFunction() {
       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);
   // Load double input into registers.
   __ fld_d(MemOperand(esp, 4));
   __ X87SetFPUCW(0x027F);
@@ -100,7 +100,7 @@ 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