Rename SmartPointer to SmartArrayPointer.

src/ast.cc

Index: src/ast.cc
diff --git a/src/ast.cc b/src/ast.cc
index a44d9ee460edf3b12585bcddb8099694e351a514..418cc432b67b5066c69cbc772da7544cf5f777fe 100644
--- a/src/ast.cc
+++ b/src/ast.cc
@@ -969,7 +969,7 @@ class RegExpUnparser: public RegExpVisitor {
  public:
   RegExpUnparser();
   void VisitCharacterRange(CharacterRange that);
-  SmartPointer<const char> ToString() { return stream_.ToCString(); }
+  SmartArrayPointer<const char> ToString() { return stream_.ToCString(); }
 #define MAKE_CASE(Name) virtual void* Visit##Name(RegExp##Name*, void* data);
   FOR_EACH_REG_EXP_TREE_TYPE(MAKE_CASE)
 #undef MAKE_CASE
@@ -1124,7 +1124,7 @@ void* RegExpUnparser::VisitEmpty(RegExpEmpty* that, void* data) {
 }
 
 
-SmartPointer<const char> RegExpTree::ToString() {
+SmartArrayPointer<const char> RegExpTree::ToString() {
   RegExpUnparser unparser;
   Accept(&unparser, NULL);
   return unparser.ToString();