Report JVM signature clashes from JVM_IR

Also:

* Do not rename public ABI fields
This includes backing fields for const, lateinit, @JvmField properties,
and instance fields for objects.

* FAKE_OVERRIDE declarations for static members of parent Java classes
Required to report cases when a Kotlin function accidentally overrides
Java class member.

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/statics/jkjk.kt

@@ -0,0 +1,34 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+// FILE: A.java
+
+public class A {
+    public static void foo() {}
+    public static void baz(String s) {}
+}
+
+// FILE: B.kt
+
+open class B : A() {
+}
+
+// FILE: C.java
+
+public class C extends B {
+    public static void bar(int i) {}
+}
+
+// FILE: K.kt
+
+open class K : C() {
+    <!ACCIDENTAL_OVERRIDE!>fun foo()<!> {}
+    fun foo(a: Any) {}
+    <!ACCIDENTAL_OVERRIDE!>fun bar(i: Int)<!> {}
+    fun bar(i: String) {}
+    fun baz(i: Int) {}
+
+    companion object {
+        fun foo() {}
+        fun bar(i: Int) {}
+    }
+}