Function isPrototypeProperty

test/fixtures/snapshot/typescript.js:74318–74327

* Return whether this symbol is a member of a prototype somewhere * Note that this is not tracked well within the compiler, so the answer may be incorrect.

(symbol)

         * Note that this is not tracked well within the compiler, so the answer may be incorrect.
         */
        function isPrototypeProperty(symbol) {
            if (symbol.flags & 8192 /* SymbolFlags.Method */ || ts.getCheckFlags(symbol) & 4 /* CheckFlags.SyntheticMethod */) {
                return true;
            }
            if (ts.isInJSFile(symbol.valueDeclaration)) {
                var parent = symbol.valueDeclaration.parent;
                return parent && ts.isBinaryExpression(parent) &&
                    ts.getAssignmentDeclarationKind(parent) === 3 /* AssignmentDeclarationKind.PrototypeProperty */;
            }
        }
        /**
         * Check whether the requested property access is valid.
         * Returns true if node is a valid property access, and false otherwise.