Object-oriented languages where the distinction between classes and instances have been removed:
ABCL/1
ABCL/R
ABCL/R2
ABCL/c plus
ActionScript
Agora
Cecil
CodeSimian programming language
ECMAScript a.k.a. ActionScript, DMDScript, JavaScript, JScript (first named Mocha, then LiveScript)
Io
MOO
NewtonScript
Obliq
REBOL
Self (the first prototype-based language, derived from Smalltalk)
Slate
TADS