v0.19.10

Bug fixes

• proper error for block scoped class expressions (#2012) (75890dc)
• Expression passed to evaluateCondition asserted to be valid (#2013) (81c2bad)
• Add redeclare variable error message (#1987) (#2002) (935b865)
• Ast Builder: Fix export statment (#1998) (b7a3db8)

Performance

• Add shortcuts for some non-tagged string templates (#2014) (551b312)

Other

• Minor reafactoring for asc.js (#2010) (dd5111b)