Automatically step through kw wrappers

Fixes #7

src/ASTInterpreter2.jl

@@ -407,7 +407,8 @@ end
 function maybe_step_through_wrapper!(stack)
     last = stack[1].code.code[end-1]
     isexpr(last, :(=)) && (last = last.args[2])
-    if isexpr(last, :call) && any(x->x==SlotNumber(1), last.args)
+    is_kw = startswith(String(Base.unwrap_unionall(stack[1].meth.sig).parameters[1].name.name), "#kw")
+    if is_kw || isexpr(last, :call) && any(x->x==SlotNumber(1), last.args)
         # If the last expr calls #self# or passes it to an implemetnation method,
         # this is a wrapper function that we might want to step though
         frame = stack[1]

test/stepping.jl

@@ -183,4 +183,14 @@ execute_command(state, state.stack[1], Val{:n}(), "n")
 execute_command(state, state.stack[1], Val{:finish}(), "finish")
 execute_command(state, state.stack[1], Val{:finish}(), "finish")
 @assert isempty(state.stack)
-@assert state.overall_result == 2
+@assert state.overall_result == 2
+
+# Test that we step through kw wrappers
+f(foo; bar=3) = foo+bar
+stack = @make_stack f(2, bar=4)
+@assert length(stack) > 1
+state = dummy_state(stack)
+execute_command(state, state.stack[1], Val{:n}(), "nc")
+execute_command(state, state.stack[1], Val{:n}(), "nc")
+@assert isempty(state.stack)
+@assert state.overall_result == 6