Added tests for removing files from package.

jps-plugin/testData/incremental/packageFileRemoved/a.kt

@@ -0,0 +1,3 @@
+package test
+
+fun a() = "a"

jps-plugin/testData/incremental/packageFileRemoved/b.kt

@@ -0,0 +1,3 @@
+package test
+
+fun b() = "b"

jps-plugin/testData/incremental/packageFileRemoved/build.log

@@ -0,0 +1,25 @@
+Cleaning output files:
+out/production/module/test/TestPackage-b-*.class
+out/production/module/test/TestPackage.class
+End of files
+Compiling files:
+End of files
+Cleaning output files:
+out/production/module/other/OtherPackage-other-*.class
+out/production/module/other/OtherPackage.class
+out/production/module/test/TestPackage-a-*.class
+out/production/module/test/TestPackage.class
+End of files
+Compiling files:
+src/a.kt
+src/other.kt
+End of files
+
+
+Cleaning output files:
+out/production/module/other/OtherPackage-other-*.class
+out/production/module/other/OtherPackage.class
+End of files
+Compiling files:
+src/other.kt
+End of files

jps-plugin/testData/incremental/packageFileRemoved/other.kt

@@ -0,0 +1,3 @@
+package other
+
+fun imInOtherPackage() = ":)"

jps-plugin/testData/incremental/packageFileRemoved/other.kt.new.2

@@ -0,0 +1,3 @@
+package other
+
+fun imInOtherPackage() = ":))"