Jump to declaration multiple workspaces

[jasonbronson]

Jump to declaration goes to incorrect files in another folder in workspace when using multiple files with same file and method names.

VSCode Version: 1.25.1
OS Version: 10.13.6 OSX
Steps to Reproduce:

While setting this up for you I realized you don't even need a workspace for this issue. Just two folders does the trick.

Step 1 create a folder vscodebug
Step 2 open in vscode the folder with my github repo in it
https://github.com/jasonbronson/BugVSCode
Step 3 open up posts.php under this folder in editor
/pcentral/wp-content/themes/theme1/libraries/posts.php
Step 4 close the posts.php file
Step 5 open up pressreleases.php file under
/pmasters/wp-content/themes/theme2/libraries/pressreleases.php
Step 6 Highlight "Posts" under Pressrelease extends Posts
Step 7 hit go to declaration
Step 8 notice it jumps to the top folder with that file.

I believe if you're in a folder the top level would be all that it should be searching for not going to other folders.
Example I open up top folder 1 to copy some code into the library file I'm building into folder2 now this bug occurs.

[Ciantic]

This probably does not have a support for multiple folders yet. Quote from workspace support in VSCode:

If you are implementing a language server then you are affected since up to now a language server only had to handle a single folder. In the new multi-folder setup, a language server should be able to handle multiple folders. See the section 'Language Client/Language Server' below.

So the language server must have a possibility to index multiple arbitrary folders, and make them work as one.

[Ciantic]

This is duplicate of #513

[felixfbecker]

@Ciantic thanks! Duplicate of #513