remove keyword suggestions in constructor names and prefixed expressions

pkg/analysis_server/test/services/completion/keyword_contributor_test.dart

Index: pkg/analysis_server/test/services/completion/keyword_contributor_test.dart
diff --git a/pkg/analysis_server/test/services/completion/keyword_contributor_test.dart b/pkg/analysis_server/test/services/completion/keyword_contributor_test.dart
index a5219ff225672bba1ef384dd1dab9d8f10863da0..cbf37941f30e74b9afc6bd6e1a4116b333c56455 100644
--- a/pkg/analysis_server/test/services/completion/keyword_contributor_test.dart
+++ b/pkg/analysis_server/test/services/completion/keyword_contributor_test.dart
@@ -939,6 +939,30 @@ class A {
     assertSuggestKeywords([]);
   }
 
+  test_newInstance() {
+    addTestSource('class A { foo() {new ^}}');
+    expect(computeFast(), isTrue);
+    assertSuggestKeywords([]);
+  }
+
+  test_newInstance2() {
+    addTestSource('class A { foo() {new ^ print("foo");}}');
+    expect(computeFast(), isTrue);
+    assertSuggestKeywords([]);
+  }
+
+  test_newInstance_prefixed() {
+    addTestSource('class A { foo() {new A.^}}');
+    expect(computeFast(), isTrue);
+    assertSuggestKeywords([]);
+  }
+
+  test_newInstance_prefixed2() {
+    addTestSource('class A { foo() {new A.^ print("foo");}}');
+    expect(computeFast(), isTrue);
+    assertSuggestKeywords([]);
+  }
+
   test_part_of() {
     addTestSource('part of foo;^');
     expect(computeFast(), isTrue);
@@ -960,6 +984,30 @@ class A {
         relevance: DART_RELEVANCE_HIGH);
   }
 
+  test_prefixed_field() {
+    addTestSource('class A { int x; foo() {x.^}}');
+    expect(computeFast(), isTrue);
+    assertSuggestKeywords([]);
+  }
+
+  test_prefixed_field2() {
+    addTestSource('class A { int x; foo() {x.^ print("foo");}}');
+    expect(computeFast(), isTrue);
+    assertSuggestKeywords([]);
+  }
+
+  test_prefixed_local() {
+    addTestSource('class A { foo() {int x; x.^}}');
+    expect(computeFast(), isTrue);
+    assertSuggestKeywords([]);
+  }
+
+  test_prefixed_local2() {
+    addTestSource('class A { foo() {int x; x.^ print("foo");}}');
+    expect(computeFast(), isTrue);
+    assertSuggestKeywords([]);
+  }
+
   test_switch_expression() {
     addTestSource('main() {switch(^) {}}');
     expect(computeFast(), isTrue);