Change testData for ShortenRefsTestGenerated to not use sql package

- Those packages are missing in the mockJdk 1.8 in intellij repository,
and it leads to those tests failing in kotlin-ide repository
- Test in `ShortenRefsTestGenerated` do not fail, but they are working
for the wrong reason (they do not shorten unresolved references)

idea/testData/shortenRefs/constructor/LeaveQualified.kt

@@ -1,3 +1,3 @@
 import java.util.Date
 
-val x = <selection>java.sql.Date(1)</selection>
+val x = <selection>dependency.Date(1)</selection>