Fix tests to pass internally (#8683)

packages/flutter/test/foundation/error_reporting_test.dart

@@ -66,7 +66,7 @@ Future<Null> main() async {
       '^══╡ EXCEPTION CAUGHT BY ERROR HANDLING TEST ╞═══════════════════════════════════════════════════════\n'
       'The following assertion was thrown testing the error handling logic:\n'
       'Message goes here\\.\n'
-      '\'[^\']+packages/flutter/test/foundation/error_reporting_test\\.dart\': Failed assertion: line [0-9]+ pos [0-9]+: \'false\'\n'
+      '\'[^\']+flutter/test/foundation/error_reporting_test\\.dart\': Failed assertion: line [0-9]+ pos [0-9]+: \'false\'\n'
       '\n'
       'Either the assertion indicates an error in the framework itself, or we should provide substantially '
       'more information in this error message to help you determine and fix the underlying cause\\.\n'
@@ -74,10 +74,10 @@ Future<Null> main() async {
       '  https://github\\.com/flutter/flutter/issues/new\n'
       '\n'
       'When the exception was thrown, this was the stack:\n'
-      '#0      getSampleStack\\.<anonymous closure> \\([^)]+packages/flutter/test/foundation/error_reporting_test\\.dart:[0-9]+:[0-9]+\\)\n'
-      '#2      getSampleStack \\([^)]+packages/flutter/test/foundation/error_reporting_test\\.dart:[0-9]+:[0-9]+\\)\n'
+      '#0      getSampleStack\\.<anonymous closure> \\([^)]+flutter/test/foundation/error_reporting_test\\.dart:[0-9]+:[0-9]+\\)\n'
+      '#2      getSampleStack \\([^)]+flutter/test/foundation/error_reporting_test\\.dart:[0-9]+:[0-9]+\\)\n'
       '<asynchronous suspension>\n' // TODO(ianh): https://github.com/flutter/flutter/issues/4021
-      '#3      main \\([^)]+packages/flutter/test/foundation/error_reporting_test\\.dart:[0-9]+:[0-9]+\\)\n'
+      '#3      main \\([^)]+flutter/test/foundation/error_reporting_test\\.dart:[0-9]+:[0-9]+\\)\n'
       '(.+\n)+' // TODO(ianh): when fixing #4021, also filter out frames from the test infrastructure below the first call to our main()
       '\\(elided [0-9]+ frames from package dart:async\\)\n'
       '\n'
@@ -107,7 +107,7 @@ Future<Null> main() async {
       'word word word word word word word word word word word word word word word word word word word word '
       'word word word word word word word word word word word word word word word word word word word word '
       'word word word word word word word word word word word word word word word word word word word word\n'
-      '\'[^\']+packages/flutter/test/foundation/error_reporting_test\\.dart\': Failed assertion: line [0-9]+ pos [0-9]+: \'false\'\n'
+      '\'[^\']+flutter/test/foundation/error_reporting_test\\.dart\': Failed assertion: line [0-9]+ pos [0-9]+: \'false\'\n'
       '\n'
       'Either the assertion indicates an error in the framework itself, or we should provide substantially '
       'more information in this error message to help you determine and fix the underlying cause\\.\n'
@@ -147,7 +147,7 @@ Future<Null> main() async {
     expect(console.join('\n'), matches(new RegExp(
       '^══╡ EXCEPTION CAUGHT BY ERROR HANDLING TEST ╞═══════════════════════════════════════════════════════\n'
       'The following assertion was thrown testing the error handling logic:\n'
-      '\'[^\']+packages/flutter/test/foundation/error_reporting_test\\.dart\': Failed assertion: line [0-9]+ pos [0-9]+: \'false\': is not true\\.\n'
+      '\'[^\']+flutter/test/foundation/error_reporting_test\\.dart\': Failed assertion: line [0-9]+ pos [0-9]+: \'false\': is not true\\.\n'
       '\n'
       'Either the assertion indicates an error in the framework itself, or we should provide substantially '
       'more information in this error message to help you determine and fix the underlying cause\\.\n'
@@ -155,10 +155,10 @@ Future<Null> main() async {
       '  https://github\\.com/flutter/flutter/issues/new\n'
       '\n'
       'When the exception was thrown, this was the stack:\n'
-      '#0      getSampleStack\\.<anonymous closure> \\([^)]+packages/flutter/test/foundation/error_reporting_test\\.dart:[0-9]+:[0-9]+\\)\n'
-      '#2      getSampleStack \\([^)]+packages/flutter/test/foundation/error_reporting_test\\.dart:[0-9]+:[0-9]+\\)\n'
+      '#0      getSampleStack\\.<anonymous closure> \\([^)]+flutter/test/foundation/error_reporting_test\\.dart:[0-9]+:[0-9]+\\)\n'
+      '#2      getSampleStack \\([^)]+flutter/test/foundation/error_reporting_test\\.dart:[0-9]+:[0-9]+\\)\n'
       '<asynchronous suspension>\n' // TODO(ianh): https://github.com/flutter/flutter/issues/4021
-      '#3      main \\([^)]+packages/flutter/test/foundation/error_reporting_test\\.dart:[0-9]+:[0-9]+\\)\n'
+      '#3      main \\([^)]+flutter/test/foundation/error_reporting_test\\.dart:[0-9]+:[0-9]+\\)\n'
       '(.+\n)+' // TODO(ianh): when fixing #4021, also filter out frames from the test infrastructure below the first call to our main()
       '\\(elided [0-9]+ frames from package dart:async\\)\n'
       '\n'
@@ -170,7 +170,7 @@ Future<Null> main() async {
     FlutterError.dumpErrorToConsole(new FlutterErrorDetails(
       exception: getAssertionErrorWithoutMessage(),
     ));
-    expect(console.join('\n'), matches('Another exception was thrown: \'[^\']+packages/flutter/test/foundation/error_reporting_test\\.dart\': Failed assertion: line [0-9]+ pos [0-9]+: \'false\': is not true\\.'));
+    expect(console.join('\n'), matches('Another exception was thrown: \'[^\']+flutter/test/foundation/error_reporting_test\\.dart\': Failed assertion: line [0-9]+ pos [0-9]+: \'false\': is not true\\.'));
     console.clear();
     FlutterError.resetErrorCount();
   });