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

[Luca Bruno <lucabru src gnome org>]

The branch 'wip/attributes-clean' was created.

Summary of new commits:

  a5b685c... Specify default values in Attribute methods
  cf62e1d... Add attributes cache to code nodes
  439a722... Add helper methods to CodeNode for dealing with attributes
  a5461d2... On-demand Delegate.has_target
  2959a39... On-demand Class.is_compact
  8fada00... On-demand Class.is_immutable
  f05ea3e... On-demand Struct.is_simple_type
  7b5d681... On-demand Struct.is_boolean_type
  9f3a743... On-demand Struct.is_integer_type
  0dde3c4... On-demand Struct.is_floating_type
  3d335e5... On-demand Struct.rank
  53da430... On-demand Struct.width
  ae5db20... On-demand Struct.signed
  3e5f1a4... On-demand Struct.decimal_floating_type
  4c694e2... On-demand Struct.is_immutable
  588fd64... On-demand Symbol.deprecated
  1640c6c... On-demand Symbol.deprecated_since
  c397c01... On-demand Symbol.replacement
  0a8b7d2... Drop Symbol.process_deprecated_attribute
  93b6432... On-demand Symbol.experimental
  c7a1893... Drop Symbol.process_experimental_attribute
  308439e... On-demand Method.has_construct_function
  0659f86... On-demand Method.returns_floating_reference
  919be0c... On-demand Method.printf_format and scanf_format
  c0bc149... Drop unused references to NoThrow attribute
  581040f... Drop destroy_function dependency from Struct.is_disposable
  4d95655... girparser: Do not use C specific methods of code nodes
  39f920e... gidlparser: Do not use C specific methods of code nodes
  c7e9ad4... codewriter: Do not use C specific methods of code nodes
  b99dfa8... codegen: Add CCodeAttribute
  40b0d99... girwriter: Don't use C specific methods of code nodes
  f42144e... Drop C specific methods from the code tree