cmd/compile: update TestFormats for CL 196959
cmd/compile: update TestFormats for CL 196959

CL 196959 uses %v to print *EscLocation values. This happens at least at
    Fatalf("path inconsistency: %v != %v", edge.src, src)
in (*Escape).explainPath.

Change-Id: I1c761406af6a1025403dfefa5ec40aee75e72944
Reviewed-on: https://go-review.googlesource.com/c/go/+/205377
Run-TryBot: Ian Lance Taylor <87e9c6d529889242b7e184afb632328636553ab4@golang.org>
Reviewed-by: Brad Fitzpatrick <ae9783c0b0efc69cd85ab025ddd17aa44cdc4aa5@golang.org>
TryBot-Result: Gobot Gobot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>

cloudflare/go,CAFxX/go,cloudflare/go,golang/go,nawawi/go,nawawi/go,cloudflare/go,akutz/go,golang/go,cloudflare/go,cloudflare/go,nawawi/go,golang/go,nawawi/go,cloudflare/go,golang/go,CAFxX/go,cloudflare/go,CAFxX/go,nawawi/go,akutz/go,nawawi/go,CAFxX/go,cloudflare/go,CAFxX/go,golang/go,CAFxX/go,golang/go,nawawi/go,CAFxX/go,golang/go,akutz/go,akutz/go,nawawi/go,akutz/go,akutz/go,golang/go,akutz/go,akutz/go,CAFxX/go