Move JVM specific IC test data to separate dir

jps-plugin/testData/incremental/withJava/other/optionalParameter/build.log

@@ -0,0 +1,11 @@
+================ Step #1 =================
+
+Cleaning output files:
+  out/production/module/META-INF/module.kotlin_module
+  out/production/module/test/OtherKt.class
+End of files
+Compiling files:
+  src/other.kt
+End of files
+Exit code: OK
+------------------------------------------

jps-plugin/testData/incremental/withJava/other/optionalParameter/fun.kt

@@ -0,0 +1,6 @@
+package test
+
+@kotlin.jvm.JvmOverloads
+fun f(a: String, b: Int = 5) {
+
+}

jps-plugin/testData/incremental/withJava/other/optionalParameter/other.kt

@@ -0,0 +1,5 @@
+package test
+
+fun other() {
+
+}