JsCode: removed old inline tests
JsCode: moved inline related test stuff to separate class/directory
JsInline: removed test cases from MistTest
JsInline: JsThrow cloning
JsInline: added call counter
JsInline: added js ast search util
JsInline: added inline test helper methods
JsInline: inline simple assignment test case
JsInline: return statement counter
JsInline: break labels are optional
JsInline: removed unused variable
JsInline: removed result expression initialization to undefined