This is my proposed to solution to one of the worst logic errors in any number of languages, being:
if(i=0)
vs.
if(i==0)

The proposal is to tweak the wording of contextual conversions to bool, prohibiting unparenthesised assignments from being eligible for contextual conversion. Code that intends to do this can simply put parenthesis around the assignment or use an init-statement, and code that does this without intention (i.e. intends the comparison) would be elevated from a logic error (the worst kind honestly) to a compile-time error.