lib/Ext/core/Ext.js
function(cls, overrides) {
            if (cls.$isClass) {
                return cls.override(overrides);
            }
            else {
                Ext.apply(cls.prototype, overrides);
            }
        }
function(cls, overrides) {
            if (cls.$isClass) {
                return cls.override(overrides);
            }
            else {
                Ext.apply(cls.prototype, overrides);
            }
        }
Proxy to {@link Ext.Base#override}. Please refer {@link Ext.Base#override} for further details.

@param {Object} cls The class to override
@param {Object} overrides The properties to add to `origClass`. This should be specified as an object literal
containing one or more properties.
@method override
@deprecated 2.0.0 Please use {@link Ext#define Ext.define} instead.