Support type hinting

[jens1o]

This pr does include the pr #374, because the pr was created with the master branch. So I would like that the "define-constants" pr will be merged first.

[jens1o]

When fine, I'll create tests. But I'm unsure wether the code is okay like this.

[codecov]

Codecov Report

Merging #352 into master will decrease coverage by 0.82%.
The diff coverage is 61.76%.

@@             Coverage Diff              @@
##             master     #352      +/-   ##
============================================
- Coverage      84.2%   83.38%   -0.83%     
- Complexity      815      834      +19     
============================================
  Files            59       59              
  Lines          1722     1751      +29     
============================================
+ Hits           1450     1460      +10     
- Misses          272      291      +19

Impacted Files	Coverage Δ	Complexity Δ
src/Index/Index.php	68.62% <ø> (ø)	21 <0> (ø)	⬇️
src/Protocol/SymbolInformation.php	95.91% <100%> (+0.46%)	30 <0> (+5)	⬆️
src/DefinitionResolver.php	78.85% <50%> (-3.01%)	290 <0> (+14)

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[swiffer]

@felixfbecker is this still working, would be great to have this merged?

should solve issue #350 right?

[felixfbecker]

This is based on an old version of the langserver that used a different parser, see the merge conflicts. It's also missing some tests.

[jens1o]

Okay, ehm, I will watch out when I got more time and then refile the pull request.