[vala] Created tag 0.49.90

[Rico Tzschichholz <ricotz src gnome org>]

The signed tag '0.49.90' was created.

Tagger: Rico Tzschichholz <ricotz ubuntu com>
Date: 1597497837 +0200

    0.49.90

Changes since the last tag '0.49.2':

Rico Tzschichholz (16):
      Revert "girwriter: Use appropriate get_ccode_* functions"
      tests: Add more "invalid" tests to increase coverage
      tests: Add "property accessor with try statement" test to increase coverage
      tests: Add "constant and union" gir test to increase coverage
      tests: Add "nested namespace" girwriter test to increase coverage
      tests: Don't rely on undefined use-after-free behaviour of glibc
      Add TraverseVisitor for traversing the tree with a callback
      vala: Move transformation of unary increment/decrement to codegen
      Force usage of temporary variables for "tainted" member accesses
      tests: Add "pre-post-increment with side effect" tests to increase coverage
      vala: Set parent_node for child nodes of lambda-expression
      webkit2gtk-4.0: Update to 2.29.91
      gstreamer: Update from 1.17.2+ git master
      pango: Update from 1.46.0
      gtk4: Update to 3.99.0+e6e2d6b4
      Release 0.49.90