JVM IR: do not mangle synthetic methods with inline class parameters

For example, synthetic `$annotations` methods for properties were
previously mangled to `$annotations-...`, which breaks annotation
loader, and fails an assert in ClassCodegen.generateMethod.

compiler/testData/codegen/box/inlineClasses/annotatedMemberExtensionProperty.kt

@@ -0,0 +1,17 @@
+// IGNORE_BACKEND_FIR: JVM_IR
+
+@Target(AnnotationTarget.PROPERTY)
+annotation class Anno
+
+inline class Z(val s: String)
+
+class A {
+    @Anno
+    val Z.r: String get() = s
+}
+
+fun box(): String {
+    with(A()) {
+        return Z("OK").r
+    }
+}