Rollback third_party/dart-sdk to 1.13.0

tools/dart/update.py

@@ -18,7 +18,7 @@
 # How to roll the dart sdk: Just change this url! We write this to the stamp
 # file after we download, and then check the stamp file for differences.
 SDK_URL_BASE = ('http://gsdview.appspot.com/dart-archive/channels/stable/raw/'
-                '1.14.0/sdk/')
+                '1.13.0/sdk/')
 
 LINUX_64_SDK = 'dartsdk-linux-x64-release.zip'
 MACOS_64_SDK = 'dartsdk-macos-x64-release.zip'

travis/analyze.sh

@@ -1,4 +1,4 @@
 echo "Analyzing dart:ui library..."
-RESULTS=`dartanalyzer --ignore-unrecognized-flags --supermixin --enable-strict-call-checks --enable_type_checks --strong --package-warnings --fatal-warnings --strong-hints --fatal-hints --lints out/Debug/gen/sky/bindings/dart_ui.dart 2>&1 | grep -v "\[error\] Native functions can only be declared in the SDK and code that is loaded through native extensions" | grep -Ev "\[hint\] The function '.+' is not used" | grep -v "\[warning\] Undefined name 'main'" | grep -Ev "[0-9]+ errors found." | grep -v "Analyzing \[out/Debug/gen/sky/bindings/dart_ui.dart\]\.\.\."`
+RESULTS=`dartanalyzer --ignore-unrecognized-flags --supermixin --enable-strict-call-checks --enable_type_checks --strong --package-warnings --fatal-warnings --strong-hints --fatal-hints --lints out/Debug/gen/sky/bindings/dart_ui.dart 2>&1 | grep -v "\[error\] Native functions can only be declared in the SDK and code that is loaded through native extensions" | grep -Ev "\[(hint|error)\] The function '.+' is not used" | grep -v "\[warning\] Undefined name 'main'" | grep -v "\[info\] TODO" | grep -Ev "[0-9]+ errors.*found." | grep -v "Analyzing \[out/Debug/gen/sky/bindings/dart_ui.dart\]\.\.\."`
 echo "$RESULTS"
 if [ -n "$RESULTS" ]; then exit 1; fi