Properly fix splitter's draggable region's z-index
initial implementation of types on outline (for properties)
Switched implementation to using a separate span for type and styled
Cleaned up
Added same functionality (types) to top level variables
Fixed bug with null typename
Reverted auto-formatting mistake
Review changes and refactored _getOutline into multiple methods
code style
Resolved conflicts
Fixed spark-menu and spark-menu-button examples
Merge pull request #2060 from ussuri/fix-menu-examples

Fixed spark-menu and spark-menu-button examples
Merge pull request #2061 from ussuri/fix-spark-splitter

Properly fix splitter's draggable region's z-index
Missed one change during previous upload
Merge pull request #2062 from ussuri/fix-spark-splitter

Missed one change during previous upload
Add an option to specify default value when getting a preference from PreferenceStore
Specify the default value for split view position when there is no stored preference
Set some default value for split view position in SparkPolymerUI in case client doesn't set one
Cleanup
Merge pull request #1908 from dart-lang/umop-outline-types

Added types to properties and variables on outline view