Expression type should include more variants of an expression.
Expression type should include more variants of an expression.

Fixes #1420
Closes gh-1431

jquery/esprima,ChromeDevTools/esprima,bcbcarl/esprima,jquery/esprima,bcbcarl/esprima,ariya/esprima,bcbcarl/esprima,ariya/esprima,jquery/esprima,ChromeDevTools/esprima,ChromeDevTools/esprima,ariya/esprima