Build kotlin-reflect.jar in build.xml and for Maven

Reflection will be distributed in a separate jar and not in kotlin-runtime.jar
for two primary reasons:
- Reflection implementation at the moment takes almost 2Mb
- Separate libraries for separate features is a technique encouraged by Maven,
  and it's inconvenient to make it different in the compiler distribution

compiler/tests/org/jetbrains/kotlin/codegen/CodegenTestUtil.java

@@ -122,6 +122,7 @@ public class CodegenTestUtil {
             File javaClassesTempDirectory = JetTestUtils.tmpDir("java-classes");
             List<String> classpath = new ArrayList<String>();
             classpath.add(ForTestCompileRuntime.runtimeJarForTests().getPath());
+            classpath.add(ForTestCompileRuntime.reflectJarForTests().getPath());
             classpath.add(JetTestUtils.getAnnotationsJar().getPath());
             classpath.addAll(Arrays.asList(additionalClasspath));
             List<String> options = Arrays.asList(