swc/crates/swc_ecma_parser/tests/tsc/additionOperatorWithOnlyNullValueOrUndefinedValue.ts

// bug 819721
var r1 = null + null;
var r2 = null + undefined;
var r3 = undefined + null;
var r4 = undefined + undefined;
feat(es): TypeScript 4.2 (#1330) swc_ecma_ast: - Add `is_abstract` to constructor types. swc_ecma_codegen: - Fix codegen of `Bool`. - Implement codegen for abstract constructors. swc_ecma_parser: - Inline tsc parser test suite. - Implement parsing of abstract constructor types. 2021-01-15 13:30:44 +03:00			`// bug 819721`
			`var r1 = null + null;`
			`var r2 = null + undefined;`
			`var r3 = undefined + null;`
			`var r4 = undefined + undefined;`