DeCo. Add PropertyAccessorElement.isOriginDeclaration, isOriginInterface, isOriginVariable.

Update element text writer, update expectations.

Change-Id: Ic30aee9c8ea98b9cc5581b5a390935e921babbbe
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/465743
Reviewed-by: Paul Berry <[email protected]>
Commit-Queue: Konstantin Shcheglov <[email protected]>

Author: scheglov

pkg/analyzer/test/src/summary/element_text.dart

@@ -948,6 +948,11 @@ class _Element2Writer extends _AbstractElementWriter {
       _sink.writeIf(e.isAbstract, 'abstract ');
       _sink.writeIf(e.isExternal, 'external ');
       _sink.writeIf(e.isExtensionTypeMember, 'isExtensionTypeMember ');
+
+      _assertHasExactlyOneTrue([e.isOriginDeclaration, e.isOriginVariable]);
+      _sink.writeIf(e.isOriginDeclaration, 'isOriginDeclaration ');
+      _sink.writeIf(e.isOriginVariable, 'isOriginVariable ');
+
       _writeElementName(e);
     });
 
@@ -998,6 +1003,11 @@ class _Element2Writer extends _AbstractElementWriter {
       _writeObjectId(f);
       _sink.writeIf(f.isAugmentation, 'augment ');
       _sink.writeIf(f.isSynthetic, 'synthetic ');
+
+      _assertHasExactlyOneTrue([f.isOriginDeclaration, f.isOriginVariable]);
+      _sink.writeIf(f.isOriginDeclaration, 'isOriginDeclaration ');
+      _sink.writeIf(f.isOriginVariable, 'isOriginVariable ');
+
       _writeFragmentName(f);
       // _writeBodyModifiers(e);
     });
@@ -1544,6 +1554,16 @@ class _Element2Writer extends _AbstractElementWriter {
       _sink.writeIf(e.isAbstract, 'abstract ');
       _sink.writeIf(e.isExternal, 'external ');
       _sink.writeIf(e.isExtensionTypeMember, 'isExtensionTypeMember ');
+
+      _assertHasExactlyOneTrue([
+        e.isOriginDeclaration,
+        e.isOriginInterface,
+        e.isOriginVariable,
+      ]);
+      _sink.writeIf(e.isOriginDeclaration, 'isOriginDeclaration ');
+      _sink.writeIf(e.isOriginInterface, 'isOriginInterface ');
+      _sink.writeIf(e.isOriginVariable, 'isOriginVariable ');
+
       _writeElementName(e);
     });
 
@@ -1594,6 +1614,16 @@ class _Element2Writer extends _AbstractElementWriter {
       _writeObjectId(f);
       _sink.writeIf(f.isAugmentation, 'augment ');
       _sink.writeIf(f.isSynthetic, 'synthetic ');
+
+      _assertHasExactlyOneTrue([
+        f.isOriginDeclaration,
+        f.isOriginInterface,
+        f.isOriginVariable,
+      ]);
+      _sink.writeIf(f.isOriginDeclaration, 'isOriginDeclaration ');
+      _sink.writeIf(f.isOriginInterface, 'isOriginInterface ');
+      _sink.writeIf(f.isOriginVariable, 'isOriginVariable ');
+
       _writeFragmentName(f);
       // _writeBodyModifiers(f);
     });