Move core test classes to lib.analysis.test

These are depended upon by analysis code, so need to live in the same library
as lib.analysis. Moving them here makes it possible to split the build-base
library into separate libraries for analysis, execution, and rules.

PiperOrigin-RevId: 164847161
diff --git a/src/main/java/com/google/devtools/build/lib/sandbox/SandboxHelpers.java b/src/main/java/com/google/devtools/build/lib/sandbox/SandboxHelpers.java
index 8bc53bf..d247d4e 100644
--- a/src/main/java/com/google/devtools/build/lib/sandbox/SandboxHelpers.java
+++ b/src/main/java/com/google/devtools/build/lib/sandbox/SandboxHelpers.java
@@ -22,10 +22,10 @@
 import com.google.devtools.build.lib.actions.Artifact.ArtifactExpander;
 import com.google.devtools.build.lib.actions.ExecException;
 import com.google.devtools.build.lib.actions.Spawn;
+import com.google.devtools.build.lib.analysis.test.TestConfiguration;
 import com.google.devtools.build.lib.exec.SpawnInputExpander;
 import com.google.devtools.build.lib.exec.SpawnRunner.SpawnExecutionPolicy;
 import com.google.devtools.build.lib.rules.fileset.FilesetActionContext;
-import com.google.devtools.build.lib.rules.test.TestConfiguration;
 import com.google.devtools.build.lib.standalone.StandaloneSpawnStrategy;
 import com.google.devtools.build.lib.util.Preconditions;
 import com.google.devtools.build.lib.vfs.Path;