More reorganization for the class folder

...vate-names/default/cls-decl-field-initializer-fn.template

...ames/default/cls-decl-field-initializer-heritage.template

...private-names/default/cls-decl-field-initializer.template

...alid-private-names/default/cls-decl-inner-method.template

...invalid-private-names/default/cls-decl-method-fn.template

...d-private-names/default/cls-decl-method-heritage.template

src/invalid-private-names/default/cls-decl-method.template

...lid-private-names/default/cls-decl-outter-method.template

...vate-names/default/cls-expr-field-initializer-fn.template

...ames/default/cls-expr-field-initializer-heritage.template

...private-names/default/cls-expr-field-initializer.template

...alid-private-names/default/cls-expr-inner-method.template

...invalid-private-names/default/cls-expr-method-fn.template

...d-private-names/default/cls-expr-method-heritage.template

src/invalid-private-names/default/cls-expr-method.template

...lid-private-names/default/cls-expr-outter-method.template