Disable indexer in unit tests (for now)

Indexing in unit tests seems to be problematic, since the indexer
thread retains references to Kotlin parse trees after the compile
environment has been disposed of (which happens after every test).

Author: fwcd

server/src/test/kotlin/org/javacs/kt/LanguageServerTestFixture.kt

@@ -36,6 +36,7 @@ abstract class LanguageServerTestFixture(relativeWorkspaceRoot: String) : Langua
             name = workspaceRoot.fileName.toString()
             uri = workspaceRoot.toUri().toString()
         })
+        languageServer.sourcePath.indexEnabled = false
         languageServer.connect(this)
         languageServer.initialize(init).join()