missing LineNumberNodes

[vtjnash]

the catch block and the for loop condition copy are missing their line number nodes, causing them to inherit the line number from whatever the previous context happened to be. this breaks backtraces and track malloc.

julia> function try_stacktrace()
           try
               bad_function()
           catch
               return stacktrace()
           end
       end
try_stacktrace (generic function with 1 method)

julia> @code_lowered try_stacktrace()
1-element Array{Any,1}:
 :($(Expr(:lambda, Any[symbol("#self#")], Any[Any[Any[symbol("#self#"),:Any,0]],Any[],1], :(begin  # none, line 2:
        $(Expr(:enter, 0)) # none, line 3:
        GenSym(0) = (Main.bad_function)()
        $(Expr(:leave, 1))
        return GenSym(0)
        0: 
        $(Expr(:leave, 1))
        return (Main.stacktrace)()
    end))))

julia> function a()
         for i = 1:100
          b(i)
         end
       end
a (generic function with 1 method)

julia> @code_lowered a()
1-element Array{Any,1}:
 :($(Expr(:lambda, Any[symbol("#self#")], Any[Any[Any[symbol("#self#"),:Any,0],Any[symbol("#s1"),:Any,2],Any[:i,:Any,18]],Any[],2], :(begin  # none, line 2:
        GenSym(0) = (Main.colon)(1,100)
        #s1 = (top(start))(GenSym(0))
        unless (top(!))((top(done))(GenSym(0),#s1)) goto 1
        2: 
        GenSym(1) = (top(next))(GenSym(0),#s1)
        i = (top(getfield))(GenSym(1),1)
        #s1 = (top(getfield))(GenSym(1),2) # none, line 3:
        (Main.b)(i)
        3: 
        unless (top(!))((top(!))((top(done))(GenSym(0),#s1))) goto 2
        1: 
        0: 
        return
    end))))

ref #14469

[JeffBezanson]

Fixed by #16335