Preserve sources properly for coroutine parts

Otherwise incremental reporting leads to exception when inlining into coroutine body happens

jps-plugin/testData/incremental/inlineFunCallSite/coroutine/build.log

@@ -0,0 +1,24 @@
+================ Step #1 =================
+
+Cleaning output files:
+  out/production/module/META-INF/module.kotlin_module
+  out/production/module/inline/InlineKt.class
+End of files
+Compiling files:
+  src/inline.kt
+End of files
+Marked as dirty by Kotlin:
+  src/usage.kt
+Exit code: ADDITIONAL_PASS_REQUIRED
+------------------------------------------
+Cleaning output files:
+  out/production/module/META-INF/module.kotlin_module
+  out/production/module/usage/Controller.class
+  out/production/module/usage/UsageKt$bar$1.class
+  out/production/module/usage/UsageKt.class
+End of files
+Compiling files:
+  src/usage.kt
+End of files
+Exit code: OK
+------------------------------------------

jps-plugin/testData/incremental/inlineFunCallSite/coroutine/inline.kt

@@ -0,0 +1,5 @@
+package inline
+
+inline fun f(x: Int): Int {
+    return x - 1
+}

jps-plugin/testData/incremental/inlineFunCallSite/coroutine/inline.kt.new

@@ -0,0 +1,5 @@
+package inline
+
+inline fun f(x: Int): Int {
+    return x + 1
+}

jps-plugin/testData/incremental/inlineFunCallSite/coroutine/usage.kt

@@ -0,0 +1,18 @@
+package usage
+
+fun async(coroutine x: Controller.() -> Continuation<Unit>) {
+    x(Controller()).resume(Unit)
+}
+
+class Controller {
+    suspend fun step(param: Int, next: Continuation<Int>) {
+        next.resume(param + 1)
+    }
+}
+
+fun bar() {
+    async {
+        val result = step(1)
+        inline.f(result)
+    }
+}