Update to support Go 1.27

Author: eandre

go

@@ -6,13 +6,13 @@ test runs against global state. This patch introduces a per test level callback
 test and not have state between tests interfere with each other.
 
 diff --git a/src/testing/testing.go b/src/testing/testing.go
-index 3475bfca4a..074755aef1 100644
+index 832d9e597f..7a08341d64 100644
 --- a/src/testing/testing.go
 +++ b/src/testing/testing.go
-@@ -1017,6 +1017,12 @@ func (c *common) FailNow() {
+@@ -1110,6 +1110,12 @@ func (c *common) FailNow() {
  // indentation and the final newline if necessary. It prefixes the string
  // with the file and line of the call site.
- func (c *common) log(s string) {
+ func (c *common) log(s string, isErr bool) {
 +	// allow encore to capture the log as well;
 +	// we do it here so that all the branches which result in a log message
 +	// during tests get captured, however we do it _before_ the lines get modified
@@ -22,7 +22,7 @@ index 3475bfca4a..074755aef1 100644
  	s = strings.TrimSuffix(s, "\n")
 
  	// Second and subsequent lines are indented 4 spaces. This is in addition to
-@@ -1704,11 +1710,15 @@ func (t *T) Parallel() {
+@@ -1953,11 +1959,15 @@ func (t *T) Parallel() {
  	}
  	running.Delete(t.name)
 
@@ -38,19 +38,19 @@ index 3475bfca4a..074755aef1 100644
  	if t.chatty != nil {
  		t.chatty.Updatef(t.name, "=== CONT  %s\n", t.name)
  	}
-@@ -1773,6 +1783,7 @@ var errNilPanicOrGoexit = errors.New("test executed panic(nil) or runtime.Goexit
+@@ -2029,6 +2039,7 @@ var errNilPanicOrGoexit = errors.New("test executed panic(nil) or runtime.Goexit
 
  func tRunner(t *T, fn func(t *T)) {
  	t.runner = callerName(0)
 +	encoreStartTest(t, fn)
 
  	// When this goroutine is done, either because fn(t)
  	// returned normally or because a test failure triggered
-@@ -1780,6 +1791,7 @@ func tRunner(t *T, fn func(t *T)) {
+@@ -2036,6 +2047,7 @@ func tRunner(t *T, fn func(t *T)) {
  	// a signal saying that the test is done.
  	defer func() {
  		t.checkRaces()
 +		encoreEndTest(t)
 
- 		// TODO(#61034): This is the wrong place for this check.
- 		if t.Failed() {
+ 		// Check if the test panicked or Goexited inappropriately.
+ 		//

patches/testing_patch.diff

@@ -10,10 +10,10 @@ to:
     `go version go1.21.0-encore darwin/arm64`
 
 diff --git a/src/cmd/dist/build.go b/src/cmd/dist/build.go
-index 024050c2dd..01be354b3d 100644
+index 78d55bec55..ad99860f33 100644
 --- a/src/cmd/dist/build.go
 +++ b/src/cmd/dist/build.go
-@@ -406,7 +406,8 @@ func findgoversion() string {
+@@ -407,7 +407,8 @@ func findgoversion() string {
  		// its content if available, which is empty at this point.
  		// Only use the VERSION file if it is non-empty.
  		if b != "" {
@@ -23,12 +23,12 @@ index 024050c2dd..01be354b3d 100644
  		}
  	}
 
-@@ -441,7 +442,7 @@ func findgoversion() string {
+@@ -437,7 +438,7 @@ func findgoversion() string {
  	if m == nil {
  		fatalf("internal/goversion/goversion.go does not contain 'const Version = ...'")
  	}
 -	version := fmt.Sprintf("go1.%s-devel_", m[1])
 +	version := fmt.Sprintf("go1.%s-devel-encore_", m[1])
- 	version += chomp(run(goroot, CheckExit, "git", "log", "-n", "1", "--format=format:%h %cd", "HEAD"))
- 
- 	// Cache version.
+ 	switch {
+ 	case isGitRepo():
+ 		version += chomp(run(goroot, CheckExit, "git", "log", "-n", "1", "--format=format:%h %cd", "HEAD"))