fix(is): exclude Infinity and NaN from float predicate

Author: haithium

src/mods/is.lua

@@ -31,7 +31,7 @@ M["function"] = function (v) return type(v) == "function" end
 -- stylua: ignore start
 function M.falsy(v)   return not v and true or false            end
 function M.finite(v)   return type(v) == "number" and v < huge and v > -huge end
-function M.float(v)    return type(v) == "number" and math_type(v) == "float" end
+function M.float(v)    return math_type(v) == "float" and v < huge and v > -huge end
 function M.infinite(v) return type(v) == "number" and abs(v) == huge          end
 function M.integer(v) return type(v) == "number" and v % 1 == 0 end
 function M.truthy(v)  return v and true or false                end

tests/is.test.lua

@@ -108,6 +108,9 @@ describe("mods.is", function()
     Float = {
       { expected = true , args = { 1.5 } },
       { expected = mods.runtime.version >= 503, args = { 2.0 } },
+      { expected = false, args = { math.huge } },
+      { expected = false, args = { -math.huge } },
+      { expected = false, args = { 0/0       } },
       { expected = false, args = { 1   } },
       { expected = false, args = { "abc" } },
       { expected = false, args = { nil } },