Update lang/vala to 0.36.9.

Vala 0.36.5

• Various bug fixes:
  • codegen: + Initialize temp-variable for fixed-size arrays to zero first [#787152] + Actually write declaration for GNodeTraverseFunc wrapper [#786845] + Don't transfer ownership of variable if target-type is unknown [#736774] + Adjust format-index for printf/scanf-methods which throw errors [#781061] + Include glib-object.h for Enums/Structs with type_id
  • vapigen: Mark given source-files as such and force girparser to handle them
  • tests: Fix some syntax issues [#786652]
  • Add .editorconfig file [#786620]

Vala 0.36.6

• Various bug fixes:
  • codegen: Support renamed signals [#731547]
  • Optimize (de)serialization of arrays with type-signature "ay" [#772426]
  • codegen: Try to use a more unique internal define for properties [#787436]
  • vala: Update list of used attributes
  • method: Include ownership transfer classifier for return-type mismatch

Vala 0.36.7

• Various bug fixes:
  • codegen: Prioritize "array_length=true" over "array_null_terminated=true" [#788775]
  • codegen: Avoid possible conflicts with internal property/signal defines [#788964]

Vala 0.36.8

• Various bug fixes:
  • Enforce name-length >= 3 for structs using GType [#764041]
  • Report error for missing type-parameter on enclosing type [#587905]
  • Discover invalid member access to instance field [#790903]
  • Improve error output of mismatching overriding methods
  • vala: Don't transform an explicit "null" into valid format-string [#791215]
  • codegen: Don't create null-safe destroy-wrapper for GenericType [#791283]
  • Improve error message for missing type-parameter on enclosing type [#587905]
• GIR parser:
  • Allow change of parameter names
  • Handle metadata for fields inside a transparent union
  • Accept setters with boolean return-type as valid property-accessor
  • Don't mark simple-type out-parameters with '?' as nullable

Vala 0.36.9

• Various improvements and bug fixes:
  • codegen: Add destroy param when invoking delegate returned by delegate [#792077]
  • gidlparser: Update type qualifiers
  • vala: Fix parameter type inference of overridden async methods [#792660]
  • codewriter: Don't use string.replace() to apply header_to_override [#731322]