ERROR: NonExistentClass - input.hack:2:12 - Cannot call new on undefined class Foo
ERROR: MixedAnyReturnStatement - input.hack:2:12 - Could not infer a proper return type — saw any
ERROR: NonExistentClasslike - input.hack:6:10 - Unknown classlike Foo
ERROR: MixedAnyArgument - input.hack:6:10 - Argument 1 of echo expects ?scalar, any provided
ERROR: NonExistentClasslike - input.hack:9:12 - Class, enum or interface Foo cannot be found
ERROR: NonExistentClasslike - input.hack:13:10 - Unknown classlike Foo
ERROR: MixedAnyArgument - input.hack:13:10 - Argument 1 of echo expects ?scalar, any provided
ERROR: NonExistentClasslike - input.hack:23:5 - Unknown classlike Foo
ERROR: NonExistentClass - input.hack:28:10 - Cannot access property on undefined class Foo
ERROR: MixedAnyArgument - input.hack:28:10 - Argument 1 of echo expects ?scalar, any provided
ERROR: NonExistentClass - input.hack:33:10 - Cannot access property on undefined class Foo
ERROR: InvalidArgument - input.hack:33:10 - Argument 1 of echo expects ?scalar, different type unknown-ref(Foo) provided
ERROR: NonExistentClass - input.hack:37:10 - Cannot access property on undefined class Foo
ERROR: MixedAnyArgument - input.hack:37:10 - Argument 1 of echo expects ?scalar, any provided
ERROR: NonExistentClass - input.hack:42:9 - Undefined class Foo
