Improve search for facade light class by kotlin file

LightClassUtil#getWrappingClass works for clashing facade fq names

 #KT-17855 Fixed

idea/testData/multiFileInspections/mainInTwoModules/before/A/src/part1A.kt

@@ -0,0 +1,8 @@
+@file:JvmName("MultiPart")
+@file:JvmMultifileClass
+
+package test.multiPart
+
+fun main(args: Array<String>) {
+
+}

idea/testData/multiFileInspections/mainInTwoModules/before/A/src/part2A.kt

@@ -0,0 +1,9 @@
+@file:JvmName("MultiPart")
+@file:JvmMultifileClass
+
+package test.multiPart
+
+fun other() {
+
+}
+

idea/testData/multiFileInspections/mainInTwoModules/before/A/src/simpleMain.kt

@@ -1,3 +1,5 @@
+package simple
+
 fun main(args: Array<String>) {
 
 }

idea/testData/multiFileInspections/mainInTwoModules/before/B/src/part1B.kt

@@ -0,0 +1,8 @@
+@file:JvmName("MultiPart")
+@file:JvmMultifileClass
+
+package test.multiPart
+
+fun other() {
+
+}

idea/testData/multiFileInspections/mainInTwoModules/before/B/src/part2B.kt

@@ -0,0 +1,8 @@
+@file:JvmName("MultiPart")
+@file:JvmMultifileClass
+
+package test.multiPart
+
+fun main(args: Array<String>) {
+
+}

idea/testData/multiFileInspections/mainInTwoModules/before/B/src/simpleMain.kt

@@ -1,3 +1,5 @@
+package simple
+
 fun main(args: Array<String>) {
 
 }