Most clients of _PhysicalFile read the file by translating it into a
Source object using createSource() and then reading it using
FileBasedSource.contentsFromFile, which normalizes newlines using
FileBasedSource.fileReadMode.
However, a few clients read the file directly using
_PhysicalFile.readAsStringSync(), which wasn't doing the
normalization. This CL adds the normalization to that code path.
One such client was the code generation logic for summaries; this
caused code generation to produce different results on Windows, which
led to a test failure.
Fixes#25470.
R=brianwilkerson@google.com
Review URL: https://codereview.chromium.org/1584313010 .
Paul Berry
3dcef185d6