ast: add size size of named_args, minor print tweak

Author: bvdberg

ast/named_argument.c2

@@ -57,9 +57,8 @@ fn SrcLoc NamedArgument.getEndLoc(const NamedArgument* e) {
 fn void NamedArgument.print(const NamedArgument* e, string_buffer.Buf* out, u32 indent) {
     e.base.printKind(out, indent);
     e.base.printTypeBits(out);
-    out.color(col_Value);
     out.space();
-    out.add("name: ");
+    out.color(col_Value);
     out.add(idx2name(e.name));
     out.newline();
     e.inner.print(out, indent + 1);

ast/utils.c2

@@ -74,6 +74,7 @@ static_assert(40, sizeof(ExplicitCastExpr));
 static_assert(40, sizeof(BuiltinExpr));
 static_assert(40, sizeof(FieldDesignatedInitExpr));
 static_assert(48, sizeof(ConditionalOperator));
+static_assert(32, sizeof(NamedArgument));
 
 static_assert(8, sizeof(QualType));
 static_assert(16, sizeof(Type));