Further refactoring of declarations in the AST:

src/prettyprinter.cc

Index: src/prettyprinter.cc
diff --git a/src/prettyprinter.cc b/src/prettyprinter.cc
index f3ec75adcffb5488bc2d91f7ae1549ebf6f8bb6e..d879da15d84a7bf549ef53c0b2df0374d255cdbd 100644
--- a/src/prettyprinter.cc
+++ b/src/prettyprinter.cc
@@ -61,10 +61,15 @@ void PrettyPrinter::VisitBlock(Block* node) {
 void PrettyPrinter::VisitVariableDeclaration(VariableDeclaration* node) {
   Print("var ");
   PrintLiteral(node->proxy()->name(), false);
-  if (node->fun() != NULL) {
-    Print(" = ");
-    PrintFunctionLiteral(node->fun());
-  }
+  Print(";");
+}
+
+
+void PrettyPrinter::VisitFunctionDeclaration(FunctionDeclaration* node) {
+  Print("function ");
+  PrintLiteral(node->proxy()->name(), false);
+  Print(" = ");
+  PrintFunctionLiteral(node->fun());
   Print(";");
 }
 
@@ -744,19 +749,18 @@ void AstPrinter::VisitBlock(Block* node) {
 
 
 void AstPrinter::VisitVariableDeclaration(VariableDeclaration* node) {
-  if (node->fun() == NULL) {
-    // var or const declarations
-    PrintLiteralWithModeIndented(Variable::Mode2String(node->mode()),
-                                 node->proxy()->var(),
-                                 node->proxy()->name());
-  } else {
-    // function declarations
-    PrintIndented("FUNCTION ");
-    PrintLiteral(node->proxy()->name(), true);
-    Print(" = function ");
-    PrintLiteral(node->fun()->name(), false);
-    Print("\n");
-  }
+  PrintLiteralWithModeIndented(Variable::Mode2String(node->mode()),
+                               node->proxy()->var(),
+                               node->proxy()->name());
+}
+
+
+void AstPrinter::VisitFunctionDeclaration(FunctionDeclaration* node) {
+  PrintIndented("FUNCTION ");
+  PrintLiteral(node->proxy()->name(), true);
+  Print(" = function ");
+  PrintLiteral(node->fun()->name(), false);
+  Print("\n");
 }