Support the direct passing of dictionary literals.

[cocolato]

Fix: #400 and #401

Support the direct passing of dictionary literals when calling functions and fix the errors caused by unexpected nested braces.

[cocolato]

The regular expression used here might not be elegant, but there should be no problem in terms of functionality.

[sqla-tester]

OK, this is sqla-tester setting up my work on behalf of zzzeek to try to get revision a08ff83 of this pull request into gerrit so we can run tests and reviews and stuff

[sqla-tester]

New Gerrit review created for change a08ff83: https://gerrit.sqlalchemy.org/c/sqlalchemy/mako/+/5558

[zzzeek]

some more tests to add. obviously im nervous about this change since we have to keep reverting it.

[cocolato]

Sorry for the late reply. Now all the tests have passed.

[sqla-tester]

OK, this is sqla-tester setting up my work on behalf of zzzeek to try to get revision c6aa6be of this pull request into gerrit so we can run tests and reviews and stuff

[sqla-tester]

Patchset c6aa6be added to existing Gerrit review https://gerrit.sqlalchemy.org/c/sqlalchemy/mako/+/5558

[sqla-tester]

Gerrit review https://gerrit.sqlalchemy.org/c/sqlalchemy/mako/+/5558 has been merged. Congratulations! :)

[zzzeek]

im going to release mako 1.3.7 now with these two changes you did, leaving enough room in the week to revert if we have more reports of issues, thanks!