Added hacky checks for accessing compiled functions from our module via package part instead of facade.

#KT-4590 fixed

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

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

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

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

jps-plugin/testData/incremental/accessingFunctionsViaPackagePart/b.kt.new

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

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

@@ -0,0 +1,9 @@
+Cleaning output files:
+out/production/module/test/TestPackage-b-*.class
+out/production/module/test/TestPackage-usage-*.class
+out/production/module/test/TestPackage.class
+End of files
+Compiling files:
+src/b.kt
+src/usage.kt
+End of files

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

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

jps-plugin/testData/incremental/accessingFunctionsViaPackagePart/usage.kt

@@ -0,0 +1,5 @@
+package test
+
+fun main(args: Array<String>) {
+    println(a() + b() + other.other())
+}

jps-plugin/testData/incremental/accessingFunctionsViaPackagePart/usage.kt.new

@@ -0,0 +1,5 @@
+package test
+
+fun main(args: Array<String>) {
+    println(a() + b() + other.other())
+}