Change UNDEFINED_FUNCTION from an error to a warning (issues 18274, 15315).

editor/tools/plugins/com.google.dart.engine_test/src/com/google/dart/engine/resolver/CompileTimeErrorCodeTest.java

Index: editor/tools/plugins/com.google.dart.engine_test/src/com/google/dart/engine/resolver/CompileTimeErrorCodeTest.java
diff --git a/editor/tools/plugins/com.google.dart.engine_test/src/com/google/dart/engine/resolver/CompileTimeErrorCodeTest.java b/editor/tools/plugins/com.google.dart.engine_test/src/com/google/dart/engine/resolver/CompileTimeErrorCodeTest.java
index 79885e77677dcffda1002ce830d37e29cef27a54..ff04727424c51fd7b5efdbbac6c903922febae14 100644
--- a/editor/tools/plugins/com.google.dart.engine_test/src/com/google/dart/engine/resolver/CompileTimeErrorCodeTest.java
+++ b/editor/tools/plugins/com.google.dart.engine_test/src/com/google/dart/engine/resolver/CompileTimeErrorCodeTest.java
@@ -116,24 +116,6 @@ public class CompileTimeErrorCodeTest extends ResolverTestCase {
     verify(source);
   }
 
-  public void test_ambiguousImport_function() throws Exception {
-    Source source = addSource(createSource(//
-        "import 'lib1.dart';",
-        "import 'lib2.dart';",
-        "g() { return f(); }"));
-    addNamedSource("/lib1.dart", createSource(//
-        "library lib1;",
-        "f() {}"));
-    addNamedSource("/lib2.dart", createSource(//
-        "library lib2;",
-        "f() {}"));
-    resolve(source);
-    assertErrors(
-        source,
-        StaticWarningCode.AMBIGUOUS_IMPORT,
-        CompileTimeErrorCode.UNDEFINED_FUNCTION);
-  }
-
   public void test_builtInIdentifierAsMixinName_classTypeAlias() throws Exception {
     Source source = addSource(createSource(//
         "class A {}",
@@ -3708,36 +3690,6 @@ public class CompileTimeErrorCodeTest extends ResolverTestCase {
     verify(source);
   }
 
-  public void test_undefinedFunction() throws Exception {
-    Source source = addSource(createSource(//
-        "void f() {",
-        "  g();",
-        "}"));
-    resolve(source);
-    assertErrors(source, CompileTimeErrorCode.UNDEFINED_FUNCTION);
-  }
-
-  public void test_undefinedFunction_hasImportPrefix() throws Exception {
-    Source source = addSource(createSource(//
-        "import 'lib.dart' as f;",
-        "main() { return f(); }"));
-    addNamedSource("/lib.dart", "library lib;");
-    resolve(source);
-    assertErrors(source, CompileTimeErrorCode.UNDEFINED_FUNCTION);
-  }
-
-  public void test_undefinedFunction_inCatch() throws Exception {
-    Source source = addSource(createSource(//
-        "void f() {",
-        "  try {",
-        "  } on Object {",
-        "    g();",
-        "  }",
-        "}"));
-    resolve(source);
-    assertErrors(source, CompileTimeErrorCode.UNDEFINED_FUNCTION);
-  }
-
   public void test_undefinedNamedParameter() throws Exception {
     Source source = addSource(createSource(//
         "class A {",