Remove kotlin-reflect.jar dependency from util module and move reflectionUtil.kt closer to "clients"

Main goal is get rid of kotlin-reflect.jar from modules what required for minimal compiler.jar which can compile Kotlin only to JS to make it smaller.

plugins/source-sections/source-sections-compiler/source-sections-compiler.iml

@@ -19,5 +19,6 @@
     <orderEntry type="module" module-name="util" scope="TEST" />
     <orderEntry type="module" module-name="daemon-client" scope="TEST" />
     <orderEntry type="module" module-name="daemon-common" scope="TEST" />
+    <orderEntry type="module" module-name="frontend.script" />
   </component>
 </module>