[libSyntax] Remove ParsedRawSyntaxNode::copyDeferred

This is no longer needed.

Author: ahoppen

include/swift/Parse/ParsedRawSyntaxNode.h

@@ -187,17 +187,6 @@ class ParsedRawSyntaxNode {
     return copy;
   }
 
-  ParsedRawSyntaxNode copyDeferred() const {
-    assert(isDeferredLayout() || isDeferredToken() && "node not deferred");
-    ParsedRawSyntaxNode copy;
-    copy.Data = Data;
-    copy.Range = Range;
-    copy.SynKind = SynKind;
-    copy.TokKind = TokKind;
-    copy.IsMissing = IsMissing;
-    return copy;
-  }
-
 #ifndef NDEBUG
   bool ensureDataIsNotRecorded() {
     if (getDataKind() != DataKind::Recorded)

include/swift/Parse/ParsedSyntax.h

@@ -43,10 +43,6 @@ class ParsedSyntax {
     return T(std::move(RawNode));
   }
 
-  ParsedSyntax copyDeferred() const {
-    return ParsedSyntax { RawNode.copyDeferred() };
-  }
-
   static bool kindof(syntax::SyntaxKind Kind) {
     return true;
   }

lib/Parse/ParsedRawSyntaxRecorder.cpp

@@ -231,7 +231,7 @@ size_t ParsedRawSyntaxRecorder::getDeferredNumChildren(
 void ParsedRawSyntaxRecorder::verifyElementRanges(ArrayRef<ParsedRawSyntaxNode> elements) {
   SourceLoc prevEndLoc;
   for (const auto &elem: elements) {
-    if (elem.isMissing() || elem.isNull())
+    if (elem.isNull() || elem.isMissing())
       continue;
     CharSourceRange range = elem.getRange();
     if (range.isValid()) {

lib/Parse/ParsedSyntaxNodes.cpp.gyb

@@ -31,11 +31,11 @@ Parsed${node.name}::getDeferred${child.name}(const SyntaxParsingContext *SyntaxC
   auto RawChild = getRaw().getDeferredChild(${node.name}::Cursor::${child.name}, SyntaxContext);
   if (RawChild.isNull())
     return None;
-  return Parsed${child.type_name} {RawChild.copyDeferred()};
+  return Parsed${child.type_name}(std::move(RawChild));
 }
 %     else:
 Parsed${child.type_name} Parsed${node.name}::getDeferred${child.name}(const SyntaxParsingContext *SyntaxContext) {
-  return Parsed${child.type_name} {getRaw().getDeferredChild(${node.name}::Cursor::${child.name}, SyntaxContext).copyDeferred()};
+  return Parsed${child.type_name} {getRaw().getDeferredChild(${node.name}::Cursor::${child.name}, SyntaxContext)};
 }
 %     end