Grand test fixup (#138)

* start fixing up tests

* fix up tests + automate with drone

* fiddle with linting

* messing about with drone.yml

* some more fiddling

* hmmm

* add cache

* add vendor directory

* verbose

* ci updates

* update some little things

* update sig

vendor/github.com/goccy/go-json/decode_compile_race.go

@@ -0,0 +1,34 @@
+// +build race
+
+package json
+
+import (
+	"sync"
+	"unsafe"
+)
+
+var decMu sync.RWMutex
+
+func decodeCompileToGetDecoder(typ *rtype) (decoder, error) {
+	typeptr := uintptr(unsafe.Pointer(typ))
+	if typeptr > maxTypeAddr {
+		return decodeCompileToGetDecoderSlowPath(typeptr, typ)
+	}
+
+	index := (typeptr - baseTypeAddr) >> typeAddrShift
+	decMu.RLock()
+	if dec := cachedDecoder[index]; dec != nil {
+		decMu.RUnlock()
+		return dec, nil
+	}
+	decMu.RUnlock()
+
+	dec, err := decodeCompileHead(typ, map[uintptr]decoder{})
+	if err != nil {
+		return nil, err
+	}
+	decMu.Lock()
+	cachedDecoder[index] = dec
+	decMu.Unlock()
+	return dec, nil
+}