Fix AST for GLSL DeclarationStatement

DeclarationStatement wraps a single declaration, not a list.

src/libs/glsl/glsl.g

@@ -2528,7 +2528,7 @@ case $rule_number: {
 declaration_statement ::= declaration ;
 /.
 case $rule_number: {
-    ast(1) = makeAstNode<DeclarationStatementAST>(sym(1).declaration_list);
+    ast(1) = makeAstNode<DeclarationStatementAST>(sym(1).declaration);
 }   break;
 ./
 

src/libs/glsl/glslast.cpp

@@ -218,7 +218,7 @@ void CaseLabelStatementAST::accept0(Visitor *visitor)
 void DeclarationStatementAST::accept0(Visitor *visitor)
 {
     if (visitor->visit(this))
-        accept(decls, visitor);
+        accept(decl, visitor);
     visitor->endVisit(this);
 }
 

src/libs/glsl/glslast.h

@@ -642,15 +642,15 @@ public: // attributes
 class GLSL_EXPORT DeclarationStatementAST: public StatementAST
 {
 public:
-    DeclarationStatementAST(List<DeclarationAST *> *_decls)
-        : StatementAST(Kind_DeclarationStatement), decls(finish(_decls)) {}
+    DeclarationStatementAST(DeclarationAST *_decl)
+        : StatementAST(Kind_DeclarationStatement), decl(_decl) {}
 
     virtual DeclarationStatementAST *asDeclarationStatement() { return this; }
 
     virtual void accept0(Visitor *visitor);
 
 public: // attributes
-    List<DeclarationAST *> *decls;
+    DeclarationAST *decl;
 };
 
 class GLSL_EXPORT TypeAST: public AST

src/libs/glsl/glslparser.cpp

@@ -1865,7 +1865,7 @@ case 260: {
 #line 2529 "./glsl.g"
 
 case 261: {
-    ast(1) = makeAstNode<DeclarationStatementAST>(sym(1).declaration_list);
+    ast(1) = makeAstNode<DeclarationStatementAST>(sym(1).declaration);
 }   break;
 
 #line 2536 "./glsl.g"

src/libs/glsl/glslsemantic.cpp

@@ -281,10 +281,7 @@ bool Semantic::visit(CaseLabelStatementAST *ast)
 
 bool Semantic::visit(DeclarationStatementAST *ast)
 {
-    for (List<DeclarationAST *> *it = ast->decls; it; it = it->next) {
-        DeclarationAST *decl = it->value;
-        declaration(decl);
-    }
+    declaration(ast->decl);
     return false;
 }