More accurate CFG for local class constructors (now they are not considered unconditionally executed) #KT-10042 Fixed

compiler/testData/cfg-variables/bugs/initializationInLocalClass.kt

@@ -0,0 +1,9 @@
+fun foo() {
+    var x: String
+    class A {
+        init {
+            x = ""
+        }
+    }
+    x.length
+}