compiler: add min and max builtin support

compiler/testdata/go1.21.go

@@ -0,0 +1,53 @@
+package main
+
+func min1(a int) int {
+	return min(a)
+}
+
+func min2(a, b int) int {
+	return min(a, b)
+}
+
+func min3(a, b, c int) int {
+	return min(a, b, c)
+}
+
+func min4(a, b, c, d int) int {
+	return min(a, b, c, d)
+}
+
+func minUint8(a, b uint8) uint8 {
+	return min(a, b)
+}
+
+func minUnsigned(a, b uint) uint {
+	return min(a, b)
+}
+
+func minFloat32(a, b float32) float32 {
+	return min(a, b)
+}
+
+func minFloat64(a, b float64) float64 {
+	return min(a, b)
+}
+
+func minString(a, b string) string {
+	return min(a, b)
+}
+
+func maxInt(a, b int) int {
+	return max(a, b)
+}
+
+func maxUint(a, b uint) uint {
+	return max(a, b)
+}
+
+func maxFloat32(a, b float32) float32 {
+	return max(a, b)
+}
+
+func maxString(a, b string) string {
+	return max(a, b)
+}