[vala] (32 commits) Created branch wip/attributes

[Luca Bruno <lucabru src gnome org>]

The branch 'wip/attributes' was created.

Summary of new commits:

  fe2a6c0... Specify default values in Attribute methods
  c8f0d30... Add attributes cache to code nodes
  a42e6b9... Add helper methods to CodeNode for dealing with attributes
  6349194... On-demand Delegate.has_target
  6bc3b1b... On-demand Class.is_compact
  a6e8818... On-demand Class.is_immutable
  0edb195... On-demand Struct.is_simple_type
  fae794d... On-demand Struct.is_boolean_type
  28ad3f7... On-demand Struct.is_integer_type
  761075f... On-demand Struct.is_floating_type
  65975c1... On-demand Struct.rank
  8417627... On-demand Struct.width
  228b551... On-demand Struct.signed
  a88655c... On-demand Struct.decimal_floating_type
  cd9fc0a... On-demand Struct.is_immutable
  bef75f7... On-demand Symbol.deprecated
  f333c1d... On-demand Symbol.deprecated_since
  4680e26... On-demand Symbol.replacement
  85215eb... Drop Symbol.process_deprecated_attribute
  a16c3a5... On-demand Symbol.experimental
  b9bb23c... Drop Symbol.process_experimental_attribute
  d04e295... On-demand Method.has_construct_function
  ab3ff74... On-demand Method.returns_floating_reference
  0debff3... On-demand Method.printf_format and scanf_format
  851aee7... Drop unused references to NoThrow attribute
  616d3df... Drop destroy_function dependency from Struct.is_disposable
  91a3222... girparser: Do not use C specific methods of code nodes
  e6a9fc1... gidlparser: Do not use C specific methods of code nodes
  6d1aa37... codewriter: Do not use C specific methods of code nodes
  c916404... codegen: Add CCodeAttribute
  8e32357... girwriter: Don't use C specific methods of code nodes
  e62b1f5... Drop C specific methods from the code tree