Unify symbols sharing across native scripts and runtime.

src/macros.py

Index: src/macros.py
diff --git a/src/macros.py b/src/macros.py
index 49b2cad8bdca3ae9457286b9f7646fbb0c995426..2cf93724102a39c5a8bf3ec1fcf8827b58a72d07 100644
--- a/src/macros.py
+++ b/src/macros.py
@@ -159,14 +159,11 @@ macro SHOULD_CREATE_WRAPPER(functionName, receiver) = (!IS_SPEC_OBJECT(receiver)
 macro HAS_INDEX(array, index, is_array) = ((is_array && %_HasFastPackedElements(%IS_VAR(array))) ? (index < array.length) : (index in array));
 
 # Private names.
-macro GLOBAL_PRIVATE(name) = (%CreateGlobalPrivateSymbol(name));
-macro NEW_PRIVATE(name) = (%CreatePrivateSymbol(name));
 macro IS_PRIVATE(sym) = (%SymbolIsPrivate(sym));
 macro HAS_PRIVATE(obj, sym) = (%HasOwnProperty(obj, sym));
 macro HAS_DEFINED_PRIVATE(obj, sym) = (!IS_UNDEFINED(obj[sym]));
 macro GET_PRIVATE(obj, sym) = (obj[sym]);
 macro SET_PRIVATE(obj, sym, val) = (obj[sym] = val);
-macro DELETE_PRIVATE(obj, sym) = (delete obj[sym]);
 
 # Constants.  The compiler constant folds them.
 define NAN = $NaN;