fix(transformer): Don't share resolvers between parallel transformers as this will cause a deadlock

Fixes #1276
Closes #1382

Conflicts:
	lib/transformer.dart
chore(release): v0.14.0

Closes #1380
test(compiler): Components should not pass null to inner directives.
test(watch group): Rename a test to better reflect what is tested

The code was changed in 3de00bd4902d20137dad0b551312eceb9a599d98 but the
test title was not updated