Implement AstBuilder support for library, part, and part-of declarations.

pkg/analyzer/test/generated/parser_test.dart

Index: pkg/analyzer/test/generated/parser_test.dart
diff --git a/pkg/analyzer/test/generated/parser_test.dart b/pkg/analyzer/test/generated/parser_test.dart
index 006350f70ff5690b27d75178f8b6c56bd75f2ce1..9232ff392ea5b7f69aa8aafb6c00ad6b3ab393bf 100644
--- a/pkg/analyzer/test/generated/parser_test.dart
+++ b/pkg/analyzer/test/generated/parser_test.dart
@@ -13755,6 +13755,30 @@ abstract class TopLevelParserTestMixin implements AbstractParserTestCase {
     expect(libraryDirective.semicolon, isNotNull);
   }
 
+  void test_parseDirective_library_1_component() {
+    createParser("library a;");
+    var lib = parseFullDirective() as LibraryDirective;
+    expect(lib.name.components, hasLength(1));
+    expect(lib.name.components[0].name, 'a');
+  }
+
+  void test_parseDirective_library_2_components() {
+    createParser("library a.b;");
+    var lib = parseFullDirective() as LibraryDirective;
+    expect(lib.name.components, hasLength(2));
+    expect(lib.name.components[0].name, 'a');
+    expect(lib.name.components[1].name, 'b');
+  }
+
+  void test_parseDirective_library_3_components() {
+    createParser("library a.b.c;");
+    var lib = parseFullDirective() as LibraryDirective;
+    expect(lib.name.components, hasLength(3));
+    expect(lib.name.components[0].name, 'a');
+    expect(lib.name.components[1].name, 'b');
+    expect(lib.name.components[2].name, 'c');
+  }
+
   void test_parseDirective_part() {
     createParser("part 'lib/lib.dart';");
     Directive directive = parseFullDirective();
@@ -13767,6 +13791,30 @@ abstract class TopLevelParserTestMixin implements AbstractParserTestCase {
     expect(partDirective.semicolon, isNotNull);
   }
 
+  void test_parseDirective_part_of_1_component() {
+    createParser("part of a;");
+    var partOf = parseFullDirective() as PartOfDirective;
+    expect(partOf.libraryName.components, hasLength(1));
+    expect(partOf.libraryName.components[0].name, 'a');
+  }
+
+  void test_parseDirective_part_of_2_components() {
+    createParser("part of a.b;");
+    var partOf = parseFullDirective() as PartOfDirective;
+    expect(partOf.libraryName.components, hasLength(2));
+    expect(partOf.libraryName.components[0].name, 'a');
+    expect(partOf.libraryName.components[1].name, 'b');
+  }
+
+  void test_parseDirective_part_of_3_components() {
+    createParser("part of a.b.c;");
+    var partOf = parseFullDirective() as PartOfDirective;
+    expect(partOf.libraryName.components, hasLength(3));
+    expect(partOf.libraryName.components[0].name, 'a');
+    expect(partOf.libraryName.components[1].name, 'b');
+    expect(partOf.libraryName.components[2].name, 'c');
+  }
+
   void test_parseDirective_partOf() {
     createParser("part of l;");
     Directive directive = parseFullDirective();