KT-12152 : constructor consistency analysis, base cases

compiler/testData/diagnostics/tests/constructorConsistency/property.kt

@@ -0,0 +1,5 @@
+class My(x: String) {
+    val y: String = <!DEBUG_INFO_LEAKING_THIS!>foo<!>(x)
+
+    fun foo(x: String) = "$x$y"
+}