Implement clearing of CompareICs.

src/ia32/macro-assembler-ia32.cc

Index: src/ia32/macro-assembler-ia32.cc
diff --git a/src/ia32/macro-assembler-ia32.cc b/src/ia32/macro-assembler-ia32.cc
index 60e38a6c131a47824908576258980d224f4427e9..c31b0c24bef9e63fc15793c278349549ca4510dd 100644
--- a/src/ia32/macro-assembler-ia32.cc
+++ b/src/ia32/macro-assembler-ia32.cc
@@ -2566,7 +2566,7 @@ bool AreAliased(Register r1, Register r2, Register r3, Register r4) {
 CodePatcher::CodePatcher(byte* address, int size)
     : address_(address),
       size_(size),
-      masm_(Isolate::Current(), address, size + Assembler::kGap) {
+      masm_(NULL, address, size + Assembler::kGap) {
   // Create a new macro assembler pointing to the address of the code to patch.
   // The size is adjusted with kGap on order for the assembler to generate size
   // bytes of instructions without failing with buffer size constraints.