JVM KT-41150: Fix backward compatibility for inline vals in inline class

In 1.3.x, for inline class member inline vals 'getFoo-impl' method was
generated in corresponding inline class.
Since 1.4.0, getters for properties returning inline class values are
mangled (so corresponding getters are named 'getFoo-<mangling_hash>'.
However, to maintain backward compatibility with libraries compiled with
1.3.x, inliner should be able to find 'getFoo-impl' method in the
bytecode.

compiler/testData/codegen/boxInline/inlineClasses/inlineClassWithInlineValReturningInlineClass.kt

@@ -0,0 +1,20 @@
+// !LANGUAGE: +InlineClasses
+
+// FILE: 1.kt
+
+package test
+
+inline class IC1(val x: String) {
+    inline val test get() = IC2(x)
+}
+
+inline class IC2(val x: String)
+
+
+// FILE: 2.kt
+// NO_CHECK_LAMBDA_INLINING
+
+import test.*
+
+fun box() : String =
+    IC1("OK").test.x