=== tests/cases/compiler/assignToPrototype1.ts === declare class Point { >Point : Symbol(Point, Decl(assignToPrototype1.ts, 0, 0)) add(dx: number, dy: number): void; >add : Symbol(add, Decl(assignToPrototype1.ts, 0, 21)) >dx : Symbol(dx, Decl(assignToPrototype1.ts, 1, 6)) >dy : Symbol(dy, Decl(assignToPrototype1.ts, 1, 17)) } Point.prototype.add = function(dx, dy) { >Point.prototype.add : Symbol(Point.add, Decl(assignToPrototype1.ts, 0, 21)) >Point.prototype : Symbol(Point.prototype) >Point : Symbol(Point, Decl(assignToPrototype1.ts, 0, 0)) >prototype : Symbol(Point.prototype) >add : Symbol(Point.add, Decl(assignToPrototype1.ts, 0, 21)) >dx : Symbol(dx, Decl(assignToPrototype1.ts, 4, 31)) >dy : Symbol(dy, Decl(assignToPrototype1.ts, 4, 34)) };