figure out the suffix error in this case

[todo]

Eval/Tests/EvalTests/IntegrationTests/Suffix.swift

Lines 22 to 27 in df80bd8

	// TODO: figure out the suffix error in this case
	XCTAssertEqual(evaluate("(toggle == true) and (url exists)", inputs: ["toggle": true, "url": 1]), true)
	// XCTAssertEqual(evaluate("(toggle == true) and (url exists)", inputs: ["toggle": true]), false)
	XCTAssertEqual(evaluate("(toggle == true) and (not(url exists))", inputs: ["toggle": true]), true)
	}
	func testComposition2() {

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This issue was generated by todo based on a TODO comment in df80bd8. It's been assigned to @undefined because they committed the code.