Add Dart_Invoke, which will replace Dart_InvokeDynamic and Dart_InvokeStatic.

include/dart_api.h

Index: include/dart_api.h
===================================================================
--- include/dart_api.h	(revision 5432)
+++ include/dart_api.h	(working copy)
@@ -1655,6 +1655,34 @@
 // --- Methods and Fields ---
 
 /**
+ * Invokes a method or function.
+ *
+ * The 'target' parameter may be an object, class, or library.  If
+ * 'target' is an object, then this function will invoke an instance
+ * method.  If 'target' is a class, then this function will invoke a
+ * static method.  If 'target' is a library, then this function will
+ * invoke a top-level function from that library.
+ *
+ * This function ignores visibility (leading underscores in names).
+ *
+ * May generate an unhandled exception error.
+ *
+ * \param target An object, class, or library.
+ * \param name The name of the function or method to invoke.
+ * \param number_of_arguments Size of the arguments array.
+ * \param arguments An array of arguments to the function.
+ *
+ * \return If the function or method is called and completes
+ *   successfully, then the return value is returned. If an error
+ *   occurs during execution, then an error handle is returned.
+ */
+DART_EXPORT Dart_Handle Dart_Invoke(Dart_Handle target,
+                                    Dart_Handle name,
+                                    int number_of_arguments,
+                                    Dart_Handle* arguments);
+/**
+ * DEPRECATED: Use Dart_Invoke instead.
+ *
  * Invokes a static method with the given arguments.
  *
  * May generate an unhandled exception error.
@@ -1670,6 +1698,8 @@
                                           Dart_Handle* arguments);
 
 /**
+ * DEPRECATED: Use Dart_Invoke instead.
+ *
  * Invokes an instance method with the given arguments.
  *
  * May generate an unhandled exception error.
@@ -1686,18 +1716,18 @@
 /**
  * Gets the value of a field.
  *
- * The 'container' parameter may actually be an object, class, or
- * library.  If 'container' is an object, then this function will
- * access an instance field.  If 'container' is a class, then this
- * function will access a static field.  If 'container' is a library,
- * then this function will access a top-level variable.
+ * The 'container' parameter may be an object, class, or library.  If
+ * 'container' is an object, then this function will access an
+ * instance field.  If 'container' is a class, then this function will
+ * access a static field.  If 'container' is a library, then this
+ * function will access a top-level variable.
  *
  * This function ignores field visibility (leading underscores in names).
  *
  * May generate an unhandled exception error.
  *
  * \param container An object, class, or library.
- * \param name A field name
+ * \param name A field name.
  *
  * \return If no error occurs, then the value of the field is
  *   returned. Otherwise an error handle is returned.
@@ -1719,8 +1749,8 @@
  * May generate an unhandled exception error.
  *
  * \param container An object, class, or library.
- * \param name A field name
- * \param value The new field value
+ * \param name A field name.
+ * \param value The new field value.
  *
  * \return A valid handle if no error occurs.
  */