Returns a symbol for name.
If library is not a LibraryMirror or if name is a private identifier
and library is null, throws an ArgumentError. If name is a private
identifier, the symbol returned is with respect to library.
The following text is non-normative:
Using this method may result in larger output. If possible, use the const constructor of Symbol or symbol literals.
Source
external static Symbol getSymbol(String name, [LibraryMirror library]);