Always pass an Isolate to AssemblerBase

src/mips/macro-assembler-mips.cc

Index: src/mips/macro-assembler-mips.cc
diff --git a/src/mips/macro-assembler-mips.cc b/src/mips/macro-assembler-mips.cc
index 72e668c58e9ae4499ac6c37bc608bfd6a0dbb540..c53bf9d0880b692593f47a8da8e45c08008e36ad 100644
--- a/src/mips/macro-assembler-mips.cc
+++ b/src/mips/macro-assembler-mips.cc
@@ -5802,11 +5802,11 @@ bool AreAliased(Register reg1,
 }
 
 
-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
@@ -5818,7 +5818,7 @@ 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.