fix off by one in definition (#35)

Author: KristofferC

src/CodeTracking.jl

@@ -198,6 +198,7 @@ function definition(::Type{String}, method::Method)
         istart = findnext(eol, src, istart) + 1
     end
     ex, iend = Meta.parse(src, istart)
+    iend = prevind(src, iend)
     if isfuncexpr(ex)
         iend = min(iend, lastindex(src))
         return strip(src[istart:iend], '\n'), line

test/runtests.jl

@@ -114,3 +114,17 @@ end
         @test !isempty(signatures_at("script.jl", 9))
     end
 end
+
+(a_34)(x::T, y::T) where {T<:Integer} = no_op_err("&", T)
+(b_34)(x::T, y::T) where {T<:Integer} = no_op_err("|", T)
+c_34(x::T, y::T) where {T<:Integer} = no_op_err("xor", T)
+
+(d_34)(x::T, y::T) where {T<:Number} = x === y
+(e_34)(x::T, y::T) where {T<:Real} = no_op_err("<" , T)
+(f_34)(x::T, y::T) where {T<:Real} = no_op_err("<=", T)
+l = @__LINE__
+@testset "#34 last character" begin
+    def, line = definition(String, @which d_34(1, 2))
+    @test line == l - 3
+    @test def == "(d_34)(x::T, y::T) where {T<:Number} = x === y"
+end