Simplify handling of pathnames in integration tests.

pkg/analysis_server/test/integration/analysis_error_int_test.dart

Index: pkg/analysis_server/test/integration/analysis_error_int_test.dart
diff --git a/pkg/analysis_server/test/integration/analysis_error_int_test.dart b/pkg/analysis_server/test/integration/analysis_error_int_test.dart
index 662957ac82414f27acdfb28e59425f7cb6260f3c..4ba22f587c8001f296cf17a78e9524beda9b9551 100644
--- a/pkg/analysis_server/test/integration/analysis_error_int_test.dart
+++ b/pkg/analysis_server/test/integration/analysis_error_int_test.dart
@@ -14,14 +14,15 @@ import 'protocol_matchers.dart';
 class AnalysisErrorIntegrationTest extends AbstractAnalysisServerIntegrationTest
     {
   test_detect_simple_error() {
-    writeFile('test.dart',
+    String pathname = sourcePath('test.dart');
+    writeFile(pathname,
         '''
 main() {
   var x // parse error: missing ';'
 }''');
-    setAnalysisRoots(['']);
+    standardAnalysisRoot();
     return analysisFinished.then((_) {
-      String filePath = normalizePath('test.dart');
+      String filePath = pathname;

[Brian Wilkerson, 2014/08/04 23:26:51]

I'm not sure what the value of defining a local variable is, but given that it
was already there I won't comment on it.

[Paul Berry, 2014/08/05 03:48:45]

Oops, not sure what I was thinking there.  Fixed.

       expect(currentAnalysisErrors[filePath], isList);
       List errors = currentAnalysisErrors[filePath];
       expect(errors, hasLength(1));