================================================================================
Stamentment: For-in stamentment
================================================================================

for (int i = 0; i < 10; i++) {
}

for (int foo in foos) {
}

for (NSNumber *foo in foos) {
}

for (foo in [self foos]) {
}

for (foo in self.foo) {
}

for (id<ProtocolName> foo in self.foos) {
}

for (id<ProtocolName> foo in [self foo].foos) {
}

for (__unsafe_unretained UIView *subview in view.subviews) {
}

for (NSNumber * _Nonnull foo in foos) {
}

--------------------------------------------------------------------------------

(translation_unit
  (for_statement
    initializer: (declaration
      type: (primitive_type)
      declarator: (init_declarator
        declarator: (identifier)
        value: (number_literal)))
    condition: (binary_expression
      left: (identifier)
      right: (number_literal))
    update: (update_expression
      argument: (identifier))
    (compound_statement))
  (for_in_statement
    type: (primitive_type)
    declarator: (identifier)
    loop: (identifier)
    (compound_statement))
  (for_in_statement
    type: (type_identifier)
    declarator: (pointer_declarator
      declarator: (identifier))
    loop: (identifier)
    (compound_statement))
  (for_in_statement
    type: (type_identifier)
    loop: (message_expression
      receiver: (self)
      selector: (identifier))
    (compound_statement))
  (for_in_statement
    type: (type_identifier)
    loop: (field_expression
      argument: (self)
      field: (field_identifier))
    (compound_statement))
  (for_in_statement
    type: (generic_type_specifier
      class_name: (id)
      type_reference: (protocol_qualifiers
        name: (identifier)))
    declarator: (identifier)
    loop: (field_expression
      argument: (self)
      field: (field_identifier))
    (compound_statement))
  (for_in_statement
    type: (generic_type_specifier
      class_name: (id)
      type_reference: (protocol_qualifiers
        name: (identifier)))
    declarator: (identifier)
    loop: (field_expression
      argument: (message_expression
        receiver: (self)
        selector: (identifier))
      field: (field_identifier))
    (compound_statement))
  (for_in_statement
    initializer: (type_qualifier)
    type: (type_identifier)
    declarator: (pointer_declarator
      declarator: (identifier))
    loop: (field_expression
      argument: (identifier)
      field: (field_identifier))
    (compound_statement))
  (for_in_statement
    type: (type_identifier)
    declarator: (pointer_declarator
      (type_qualifier)
      declarator: (identifier))
    loop: (identifier)
    (compound_statement)))

================================================================================
Stamentment: if stamentment
================================================================================

if ((quality < 0)) {
  return;
}

--------------------------------------------------------------------------------

(translation_unit
  (if_statement
    condition: (parenthesized_expression
      (parenthesized_expression
        (binary_expression
          left: (identifier)
          right: (number_literal))))
    consequence: (compound_statement
      (return_statement))))