Preserving annotations in incremental compilation.

Original commit: 2259cc605f

jps/jps-plugin/testData/incremental/annotations/annotations.kt

@@ -0,0 +1,13 @@
+package test
+
+annotation class Anno
+
+[Anno] fun f() {
+}
+
+[Anno] val v1 = ""
+
+var v2: String
+    get() = ""
+    [Anno] set(value) {
+    }

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

@@ -0,0 +1,7 @@
+Cleaning output files:
+out/production/module/test/TestPackage-other-*.class
+out/production/module/test/TestPackage.class
+End of files
+Compiling files:
+src/other.kt
+End of files

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

@@ -0,0 +1,4 @@
+package test
+
+fun dummyFunction() {
+}

jps/jps-plugin/testData/incremental/annotations/other.kt.new

@@ -0,0 +1,4 @@
+package test
+
+fun dummyFunction() {
+}