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

[Luca Bruno <lucabru src gnome org>]

The branch 'wip/transform' was created.

Summary of new commits:

  39ee938... Analyze nodes after they are inserted into the tree
  ce78846... Make the semantic analyzer be stateless
  6e86af5... Collect error_types on demand to allow transformations
  90aaa61... Code transformer
  900c73b... Move WhileStatement transformation into the code transforme
  8f05b8c... Move DoStatement transformation into the code transformer
  d57b17c... Move ForStatement transformation into the code transformer
  fe2d110... Move ConditionalExpression transformation into the code tra
  fbd0038... GVariant transformer
  c459004... Add ConditionalExpression.replace_expression plus other fix
  dcf9c43... Add missing replace_expression to code nodes
  8068232... Code builder
  bcbe116... Parse expressions from string
  059dd6b... Serialize structs
  f83755a... Serialize hash table
  62e3ad1... Basic gvariant deserialization
  0c57952... Deserialize arrays
  16086fa... Deserialize structs
  2e01815... Deserialize hash tables
  a892dbf... Wrapper methods
  ccf4249... Cache wrapper methods
  d099f9d... Use wrapper method for serializing hash table and structs
  84a123a... Resolve symbols during transformation
  8dd8c13... Add more to_string() methods to expressions
  1e82aaa... Let the transformer handle recursive transformations
  2821b05... Simplify some code
  2b37d39... Move gvariant helper methods down to CodeTransformer
  3b1ed40... Drop serialize_expression
  3bf4762... Use wrapper methods for deserializing gvariants
  1313b4a... Complete the gvariant transformer
  06c05cd... GDBus client transformer
  72b5c69... GDBus server transformer