Move tools to tool folder.

pkg/front_end/lib/src/base/processed_options.dart

Index: pkg/front_end/lib/src/base/processed_options.dart
diff --git a/pkg/front_end/lib/src/base/processed_options.dart b/pkg/front_end/lib/src/base/processed_options.dart
index 517129183f5e73bd0538be526bd26c85a6d85805..d575a5ca3b68ecc636b136054cb4a57adcb5b3b0 100644
--- a/pkg/front_end/lib/src/base/processed_options.dart
+++ b/pkg/front_end/lib/src/base/processed_options.dart
@@ -562,7 +562,7 @@ class ProcessedOptions {
     sb.writeln('Strong: ${strongMode}');
     sb.writeln('Target: ${_target?.name} (provided: ${_raw.target?.name})');
 
-    sb.writeln('throwOnErrorsAreFatal: ${throwOnErrors}');
+    sb.writeln('throwOnErrors: ${throwOnErrors}');
     sb.writeln('throwOnWarningsAreFatal: ${throwOnWarnings}');

[Siggi Cherem (dart-lang), 2017/08/23 20:17:34]

while you are here, let's remove AreFatal on this one too

[ahe, 2017/08/24 11:52:01]

Done.

     sb.writeln('throwOnNits: ${throwOnNits}');
     sb.writeln('exit on problem: ${setExitCodeOnProblem}');