v0.13.6

Enzyme v0.13.6

Diff since v0.13.5

Merged pull requests:

• Fix pass manager bug which allows functions to be deleted and replaced (#1924) (@wsmoses)
• Fix make_zero on constant fields (#1926) (@wsmoses)
• Union member type info (#1927) (@wsmoses)
• Stabilize global (#1928) (@wsmoses)

Closed issues:

• make_zero fails on a mutable type with const fields (#1925)