Disable shrinking in test

SemanticIndexAcceptanceTest is yet again flaky - it started just
a week ago and I suspect there is an actual bug hiding here somewhere.
However the shrinking done by scalacheck here hides the actual error
which makes it even trickier to investigate. This PR just disables the
shrinking in order to make the investigation easier.

community/cypher/cypher/src/test/scala/org/neo4j/cypher/internal/compiler/v3_3/SemanticIndexAcceptanceTest.scala

@@ -22,11 +22,14 @@ package org.neo4j.cypher.internal.compiler.v3_3
 import java.util.concurrent.TimeUnit
 
 import org.neo4j.cypher.ExecutionEngineFunSuite
-import org.scalacheck.Gen
+import org.scalacheck.{Gen, Shrink}
 import org.scalatest.prop.PropertyChecks
 
 class SemanticIndexAcceptanceTest extends ExecutionEngineFunSuite with PropertyChecks {
 
+  //we don't want scala check to shrink since it hides the actual error
+  implicit val dontShrink: Shrink[String] = Shrink(s => Stream.empty)
+
   //the actual test
   List("<", "<=", "=", ">", ">=").foreach(testOperator)