prepare for macrocall having a source location argument

JuliaLang/julia#21746

REQUIRE

@@ -1,3 +1,3 @@
 julia 0.5
-Compat 0.17
+Compat 0.25
 DocStringExtensions 0.2

src/DocSystem.jl

@@ -88,7 +88,7 @@ binding(m::Module, λ::Any) = binding(λ)
 
 function signature(x, str::AbstractString)
     ts = Base.Docs.signature(x)
-    (Meta.isexpr(x, :macrocall, 1) && !endswith(strip(str), "()")) ? :(Union{}) : ts
+    (Meta.isexpr(x, :macrocall, 1 + Compat.macros_have_sourceloc) && !endswith(strip(str), "()")) ? :(Union{}) : ts
 end
 if VERSION < v"0.5.0-dev"
     Base.Docs.signature(::Any) = :(Union{})

src/Utilities/Utilities.jl

@@ -238,7 +238,7 @@ Returns a expression that, when evaluated, returns an [`Object`](@ref) represent
 function object(ex::Union{Symbol, Expr}, str::AbstractString)
     binding   = Expr(:call, Binding, splitexpr(Docs.namify(ex))...)
     signature = Base.Docs.signature(ex)
-    isexpr(ex, :macrocall, 1) && !endswith(str, "()") && (signature = :(Union{}))
+    isexpr(ex, :macrocall, 1 + Compat.macros_have_sourceloc) && !endswith(str, "()") && (signature = :(Union{}))
     Expr(:call, Object, binding, signature)
 end
 
@@ -275,7 +275,7 @@ if VERSION < v"0.5-"
     end
 else
     function docs(ex::Union{Symbol, Expr}, str::AbstractString)
-        isexpr(ex, :macrocall, 1) && !endswith(rstrip(str), "()") && (ex = quot(ex))
+        isexpr(ex, :macrocall, 1 + Compat.macros_have_sourceloc) && !endswith(rstrip(str), "()") && (ex = quot(ex))
         :(Base.Docs.@doc $ex)
     end
 end