Adds prefix to
external declarations in a source file.
The compiler turns references to
external declarations either to plain unprefixed names (in case of plain modules)
or to plain imports.
You can tell the compiler to generate additional prefix before references to
external declarations using the
Note that a file marked with the
@JsQualifier(...) annotation can't contain non-
@file:JsQualifier("my.jsPackageName") package some.kotlinPackage external fun foo(x: Int) external fun bar(): String