Always pass an Isolate to AssemblerBase

src/arm/macro-assembler-arm.cc

Index: src/arm/macro-assembler-arm.cc
diff --git a/src/arm/macro-assembler-arm.cc b/src/arm/macro-assembler-arm.cc
index 39e9ead4fb35a63d334a23a934c31c9cd38cae29..252bb3534d6ee6da90929154a52c1e366b5f5631 100644
--- a/src/arm/macro-assembler-arm.cc
+++ b/src/arm/macro-assembler-arm.cc
@@ -3668,11 +3668,11 @@ bool AreAliased(Register reg1,
 #endif
 
 
-CodePatcher::CodePatcher(byte* address, int instructions,
+CodePatcher::CodePatcher(Isolate* isolate, byte* address, int instructions,
                          FlushICache flush_cache)
     : address_(address),
       size_(instructions * Assembler::kInstrSize),
-      masm_(NULL, address, size_ + Assembler::kGap, CodeObjectRequired::kNo),
+      masm_(isolate, address, size_ + Assembler::kGap, CodeObjectRequired::kNo),
       flush_cache_(flush_cache) {
   // 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
@@ -3684,7 +3684,7 @@ CodePatcher::CodePatcher(byte* address, int instructions,
 CodePatcher::~CodePatcher() {
   // Indicate that code has changed.
   if (flush_cache_ == FLUSH) {
-    Assembler::FlushICacheWithoutIsolate(address_, size_);
+    Assembler::FlushICache(masm_.isolate(), address_, size_);
   }
 
   // Check that the code was patched as expected.