Description:
Godoc Search isn't able to locate any package: clicking on the Packages link in the file:///usr/lib/go/doc/docs.html page does nothing. Similarly, the Find Package functionality doesn't work.
Two other code inspection-related functions also don't work (i.e. they do absolutely nothing): View Expression Information and Jump to Declaration.

Additional info:
* The Event Log window doesn't report any error.
* All linux* environments, as well as the system environment produce the same results.
* Reproducing the steps below on a binary, upstream version of the application produces the expected results.

Steps to reproduce:
* From the "Welcome" tab click "Golang Documents", then "Packages".
* From the "Godoc Search" type a package name in "Find Package" (e.g. fmt) and press enter.
* Open a *.go source file, write any code, right-click on an expression, select "View Expression Information"
* Open a *.go source file, write any code, right-click on an expression, select "Jump to Declaration"