Mode clean-up pt 1: rename classic/non-strict mode to sloppy mode

src/ast.h

Index: src/ast.h
diff --git a/src/ast.h b/src/ast.h
index aacc5e4fc8189d876c6331d895df252bdcbbeb90..954a0ae22a91671c91df3898184276d1265f61b7 100644
--- a/src/ast.h
+++ b/src/ast.h
@@ -2315,7 +2315,7 @@ class FunctionLiteral V8_FINAL : public Expression {
   int SourceSize() const { return end_position() - start_position(); }
   bool is_expression() const { return IsExpression::decode(bitfield_); }
   bool is_anonymous() const { return IsAnonymous::decode(bitfield_); }
-  bool is_classic_mode() const { return language_mode() == CLASSIC_MODE; }
+  bool is_sloppy_mode() const { return language_mode() == SLOPPY_MODE; }
   LanguageMode language_mode() const;
 
   int materialized_literal_count() { return materialized_literal_count_; }