simplify named element class structure

src/main/grammar/Grammar.bnf

@@ -22,7 +22,7 @@ comment ::= (WHITESPACE | MULTILINECOMMENT | DOCCOMMENT | SINGLELINECOMMENT)
 type_decl ::= ABSTRACT? declared_name (COL type_reference)? (ASSIGN (component | nta_component)*)? SCOL
 {
   extends="org.jastadd.tooling.grammar.psi.impl.GrammarTypeDeclImplExtension"
-  implements="org.jastadd.tooling.grammar.psi.GrammarTypeDeclExtension"
+  implements="org.jastadd.tooling.grammar.psi.GrammarNamedElement"
 }
 
 nta_component ::= SLASH component SLASH
@@ -46,7 +46,7 @@ declared_name ::= ID
 type_reference ::= ID
 {
   extends="org.jastadd.tooling.grammar.psi.impl.GrammarTypeReferenceImplExtension"
-  implements="org.jastadd.tooling.grammar.psi.GrammarTypeReferenceExtension"
+  implements="org.jastadd.tooling.grammar.psi.GrammarNamedElement"
 }
 
 java_name ::= ID

src/main/java/org/jastadd/tooling/grammar/psi/GrammarTypeDeclExtension.java

-package org.jastadd.tooling.grammar.psi;
-
-public interface GrammarTypeDeclExtension extends GrammarNamedElement {
-}

src/main/java/org/jastadd/tooling/grammar/psi/GrammarTypeReferenceExtension.java

-package org.jastadd.tooling.grammar.psi;
-
-public interface GrammarTypeReferenceExtension extends GrammarNamedElement {
-}

src/main/java/org/jastadd/tooling/grammar/psi/impl/GrammarTypeDeclImplExtension.java

@@ -5,10 +5,10 @@ import com.intellij.psi.PsiElement;
 import org.jastadd.tooling.grammar.parser.GrammarTypes;
 import org.jastadd.tooling.grammar.psi.GrammarDeclaredName;
 import org.jastadd.tooling.grammar.psi.GrammarElementFactory;
-import org.jastadd.tooling.grammar.psi.GrammarTypeDeclExtension;
+import org.jastadd.tooling.grammar.psi.GrammarNamedElement;
 import org.jetbrains.annotations.NotNull;
 
-public class GrammarTypeDeclImplExtension extends GrammarNamedElementImpl implements GrammarTypeDeclExtension {
+public class GrammarTypeDeclImplExtension extends GrammarNamedElementImpl implements GrammarNamedElement {
 
   public GrammarTypeDeclImplExtension(@NotNull ASTNode node) {
     super(node);

src/main/java/org/jastadd/tooling/grammar/psi/impl/GrammarTypeReferenceImplExtension.java

@@ -3,11 +3,11 @@ package org.jastadd.tooling.grammar.psi.impl;
 import com.intellij.lang.ASTNode;
 import com.intellij.psi.PsiElement;
 import org.jastadd.tooling.grammar.psi.GrammarElementFactory;
+import org.jastadd.tooling.grammar.psi.GrammarNamedElement;
 import org.jastadd.tooling.grammar.psi.GrammarTypeReference;
-import org.jastadd.tooling.grammar.psi.GrammarTypeReferenceExtension;
 import org.jetbrains.annotations.NotNull;
 
-public class GrammarTypeReferenceImplExtension extends GrammarNamedElementImpl implements GrammarTypeReferenceExtension {
+public class GrammarTypeReferenceImplExtension extends GrammarNamedElementImpl implements GrammarNamedElement {
 
   public GrammarTypeReferenceImplExtension(@NotNull ASTNode node) {
     super(node);