remove Isolate::Current from most files starting with 'a'

src/hydrogen.cc

Index: src/hydrogen.cc
diff --git a/src/hydrogen.cc b/src/hydrogen.cc
index feacefd68df18d79604da8a1a03af2a2ac9981d1..0b1fe09ed249aa6aa2bbb5911e33a8abe51ba4b7 100644
--- a/src/hydrogen.cc
+++ b/src/hydrogen.cc
@@ -2040,7 +2040,7 @@ HOptimizedGraphBuilder::HOptimizedGraphBuilder(CompilationInfo* info)
   // constructor for the initial state relies on function_state_ == NULL
   // to know it's the initial state.
   function_state_= &initial_function_state_;
-  InitializeAstVisitor();
+  InitializeAstVisitor(info->isolate());
 }