cmd/compile: fix fmt test

CL 196781 added map[int64]uint32 to the set of things printed with %v.

Fixes #34907

Change-Id: If4a13e86cfb4b691988f5fb70449ae23760f5789
Reviewed-on: https://go-review.googlesource.com/c/go/+/201079
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

src/cmd/compile/fmtmap_test.go

@@ -171,36 +171,37 @@ var knownFormats = map[string]string{
 	"map[*cmd/compile/internal/gc.Node]*cmd/compile/internal/ssa.Value %v": "",
 	"map[*cmd/compile/internal/gc.Node][]*cmd/compile/internal/gc.Node %v": "",
 	"map[cmd/compile/internal/ssa.ID]uint32 %v":                            "",
-	"math/big.Accuracy %s": "",
-	"reflect.Type %s":      "",
-	"rune %#U":             "",
-	"rune %c":              "",
-	"rune %q":              "",
-	"string %-*s":          "",
-	"string %-16s":         "",
-	"string %-6s":          "",
-	"string %q":            "",
-	"string %s":            "",
-	"string %v":            "",
-	"time.Duration %d":     "",
-	"time.Duration %v":     "",
-	"uint %04x":            "",
-	"uint %5d":             "",
-	"uint %d":              "",
-	"uint %x":              "",
-	"uint16 %d":            "",
-	"uint16 %x":            "",
-	"uint32 %#U":           "",
-	"uint32 %#x":           "",
-	"uint32 %d":            "",
-	"uint32 %v":            "",
-	"uint32 %x":            "",
-	"uint64 %08x":          "",
-	"uint64 %b":            "",
-	"uint64 %d":            "",
-	"uint64 %x":            "",
-	"uint8 %d":             "",
-	"uint8 %v":             "",
-	"uint8 %x":             "",
-	"uintptr %d":           "",
+	"map[int64]uint32 %v":                                                  "",
+	"math/big.Accuracy %s":                                                 "",
+	"reflect.Type %s":                                                      "",
+	"rune %#U":                                                             "",
+	"rune %c":                                                              "",
+	"rune %q":                                                              "",
+	"string %-*s":                                                          "",
+	"string %-16s":                                                         "",
+	"string %-6s":                                                          "",
+	"string %q":                                                            "",
+	"string %s":                                                            "",
+	"string %v":                                                            "",
+	"time.Duration %d":                                                     "",
+	"time.Duration %v":                                                     "",
+	"uint %04x":                                                            "",
+	"uint %5d":                                                             "",
+	"uint %d":                                                              "",
+	"uint %x":                                                              "",
+	"uint16 %d":                                                            "",
+	"uint16 %x":                                                            "",
+	"uint32 %#U":                                                           "",
+	"uint32 %#x":                                                           "",
+	"uint32 %d":                                                            "",
+	"uint32 %v":                                                            "",
+	"uint32 %x":                                                            "",
+	"uint64 %08x":                                                          "",
+	"uint64 %b":                                                            "",
+	"uint64 %d":                                                            "",
+	"uint64 %x":                                                            "",
+	"uint8 %d":                                                             "",
+	"uint8 %v":                                                             "",
+	"uint8 %x":                                                             "",
+	"uintptr %d":                                                           "",
 }