X87: Make FlushICache part of Assembler(Base) and take Isolate as parameter.

src/x87/macro-assembler-x87.cc

Index: src/x87/macro-assembler-x87.cc
diff --git a/src/x87/macro-assembler-x87.cc b/src/x87/macro-assembler-x87.cc
index 265d061427d92caaf2ba9b6c8c726880fbb4acc7..6b0051464f47f74542452b2d52efca68d0f1f10f 100644
--- a/src/x87/macro-assembler-x87.cc
+++ b/src/x87/macro-assembler-x87.cc
@@ -2722,7 +2722,7 @@ CodePatcher::CodePatcher(byte* address, int size)
 
 CodePatcher::~CodePatcher() {
   // Indicate that code has changed.
-  CpuFeatures::FlushICache(address_, size_);
+  Assembler::FlushICacheWithoutIsolate(address_, size_);
 
   // Check that the code was patched as expected.
   DCHECK(masm_.pc_ == address_ + size_);