Fix #2030 : avoid ReusableStringReader for some analyzers

[idodeclare]

Hello,

Let's see if this fixes that issue.

—CF

[tarzanek]

suggester failed?
mmmh

 SuggesterControllerTest.testGetPopularityDataAll:633 

Expected: iterable containing [<topclass=15>, <mynamespace=10>]

     but: No item matched: <topclass=15>

@ahornace any clues?

[tarzanek]

but same fails for the https fix by the bot in #3039 ...
so I'd like to accept both PRs and then look at why suggester fails on Windows
@vladak any concerns?

[vladak]

The suggester failures are transient and specific to Windows Travis environment, could be caused by a race in tests; tracked by #2704.

Before we merge this I'd like to try this with my unit test (indexing lots of jar files).

[vladak]

Before we merge this I'd like to try this with my unit test (indexing lots of jar files).

Tried the test from #2030 (comment) , did not help.