Added completion support to type hinted local variables.

[julianschwuchow]

Closes #350

[felixfbecker]

The double assignments reads very weird - just chain the ?? together

$declarationNode =
    ParserHelpers\tryGetPropertyDeclaration($expr) ??
    ParserHelpers\tryGetConstOrClassConstDeclaration($expr) ??
    $expr;

[felixfbecker]

LGTM otherwise

[felixfbecker]

Could you add a unit test for this? Otherwise it's prone to break through future changes

[codecov]

Codecov Report

Merging #701 into master will increase coverage by 0.01%.
The diff coverage is 85.71%.

@@             Coverage Diff              @@
##             master     #701      +/-   ##
============================================
+ Coverage     82.17%   82.18%   +0.01%     
- Complexity      935      938       +3     
============================================
  Files            44       44              
  Lines          2154     2161       +7     
============================================
+ Hits           1770     1776       +6     
- Misses          384      385       +1

Impacted Files	Coverage Δ	Complexity Δ
src/DefinitionResolver.php	87.43% <85.71%> (-0.03%)	335 <0> (+3)