Use safe names in codegen, for the case of light classes

compiler/testData/diagnostics/tests/duplicateJvmSignature/missingNames.kt

@@ -0,0 +1,53 @@
+fun<!SYNTAX!><!> () {
+
+}
+
+<!REDECLARATION!>val<!SYNTAX!><!> : Int = 1<!>
+
+<!REDECLARATION!>class<!SYNTAX!><!> {
+
+}<!>
+
+<!REDECLARATION!>object <!SYNTAX!><!>{
+
+}<!>
+
+<!REDECLARATION!>trait<!SYNTAX!><!> {
+
+}<!>
+
+<!REDECLARATION!>enum class<!SYNTAX!><!> {
+
+}<!>
+
+<!REDECLARATION!>annotation class<!SYNTAX!><!> <!ANNOTATION_CLASS_WITH_BODY!>{
+
+}<!><!>
+
+class Outer {
+    fun<!SYNTAX!><!> () {
+
+    }
+
+    <!REDECLARATION!>val<!SYNTAX!><!> : Int = 1<!>
+
+    <!REDECLARATION!>class<!SYNTAX!><!> {
+
+    }<!>
+
+    <!REDECLARATION!>object <!SYNTAX!><!>{
+
+    }<!>
+
+    <!REDECLARATION!>trait<!SYNTAX!><!> {
+
+    }<!>
+
+    <!REDECLARATION!>enum class<!SYNTAX!><!> {
+
+    }<!>
+
+    <!REDECLARATION!>annotation class<!SYNTAX!><!> <!ANNOTATION_CLASS_WITH_BODY!>{
+
+    }<!><!>
+}