Incremental compilation support for multifile classes.

Original commit: 3dfe9951ef

jps/jps-plugin/testData/incremental/pureKotlin/multifileClassFileMovedToAnotherMultifileClass/a.kt

@@ -0,0 +1,4 @@
+@file:[JvmName("Test") JvmMultifileClass]
+package test
+
+fun a() = "a"

jps/jps-plugin/testData/incremental/pureKotlin/multifileClassFileMovedToAnotherMultifileClass/b.kt

@@ -0,0 +1,4 @@
+@file:[JvmName("Test") JvmMultifileClass]
+package test
+
+fun b() = "b"

jps/jps-plugin/testData/incremental/pureKotlin/multifileClassFileMovedToAnotherMultifileClass/b.kt.new

@@ -0,0 +1,4 @@
+@file:[JvmName("Test1") JvmMultifileClass]
+package test
+
+fun b() = "b"

jps/jps-plugin/testData/incremental/pureKotlin/multifileClassFileMovedToAnotherMultifileClass/build.log

@@ -0,0 +1,18 @@
+Cleaning output files:
+out/production/module/META-INF/module.kotlin_module
+out/production/module/test/Test.class
+out/production/module/test/TestPackage.class
+out/production/module/test/Test__BKt.class
+End of files
+Compiling files:
+src/b.kt
+End of files
+Cleaning output files:
+out/production/module/META-INF/module.kotlin_module
+out/production/module/test/Test.class
+out/production/module/test/TestPackage.class
+out/production/module/test/Test__AKt.class
+End of files
+Compiling files:
+src/a.kt
+End of files