Changed parsing of object and enum entries to drop "KtObjectDeclarationName"

compiler/testData/psi/annotation/at/validDeclarations.txt

@@ -471,9 +471,8 @@ JetFile: validDeclarations.kt
         PsiWhiteSpace(' ')
         PsiElement(object)('object')
         PsiWhiteSpace('\n\n    ')
-        OBJECT_DECLARATION_NAME
-          PsiErrorElement:Name expected
-            PsiElement(AT)('@')
+        PsiErrorElement:Name expected
+          PsiElement(AT)('@')
       OBJECT_DECLARATION
         MODIFIER_LIST
           PsiElement(companion)('companion')
@@ -488,8 +487,7 @@ JetFile: validDeclarations.kt
         PsiWhiteSpace(' ')
         PsiElement(object)('object')
         PsiWhiteSpace(' ')
-        OBJECT_DECLARATION_NAME
-          PsiElement(IDENTIFIER)('B')
+        PsiElement(IDENTIFIER)('B')
       PsiElement(SEMICOLON)(';')
       PsiWhiteSpace('\n\n    ')
       SECONDARY_CONSTRUCTOR
@@ -661,4 +659,4 @@ JetFile: validDeclarations.kt
             PsiElement(LBRACE)('{')
             PsiElement(RBRACE)('}')
       PsiWhiteSpace('\n')
-      PsiElement(RBRACE)('}')
+      PsiElement(RBRACE)('}')