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/backend/src/org/jetbrains/kotlin/codegen/inline/InlineCodegen.kt

@@ -658,6 +658,10 @@ abstract class InlineCodegen<out T : BaseExpressionCodegen>(
                 if (nameWithoutManglingSuffix != null) {
                     methodNode = getMethodNode(bytes, nameWithoutManglingSuffix, asmMethod.descriptor, classType)
                 }
+                if (methodNode == null) {
+                    val nameWithImplSuffix = "$nameWithoutManglingSuffix-impl"
+                    methodNode = getMethodNode(bytes, nameWithImplSuffix, asmMethod.descriptor, classType)
+                }
             }
             return methodNode
         }