TParsedCubicCurveShortcutCommand
TParsedCubicCurveShortcutCommand:
TParsedAbsoluteCubicCurveShortcutCommand|TParsedRelativeCubicCurveShortcutCommand
TParsedCubicCurveShortcutCommand:
TParsedAbsoluteCubicCurveShortcutCommand|TParsedRelativeCubicCurveShortcutCommand