wrapper: print android-llvm@ when using the Android wrapper.

Otherwise, the wrapper might say:

```
Internal error. Please report to chromeos-toolchain@google.com.
```

to Android developers in some cases.

BUG=b:159291805
TEST=`go test`

Change-Id: I9a96068f02a2c6ce5e251c8754e267dfb1a30db1
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/toolchain-utils/+/2252553
Reviewed-by: Manoj Gupta <manojgupta@chromium.org>
Tested-by: George Burgess <gbiv@chromium.org>

3 files changed, 23 insertions, 2 deletions

diff --git a/compiler_wrapper/compiler_wrapper.go b/compiler_wrapper/compiler_wrapper.go
index a7b87dc0..4c3db14a 100644
--- a/compiler_wrapper/compiler_wrapper.go
+++ b/compiler_wrapper/compiler_wrapper.go
@@ -239,9 +239,13 @@ func printCompilerError(writer io.Writer, compilerErr error) {
 	if _, ok := compilerErr.(userError); ok {
 		fmt.Fprintf(writer, "%s\n", compilerErr)
 	} else {
+		emailAccount := "chromeos-toolchain"
+		if isAndroidConfig() {
+			emailAccount = "android-llvm"
+		}
 		fmt.Fprintf(writer,
-			"Internal error. Please report to chromeos-toolchain@google.com.\n%s\n",
-			compilerErr)
+			"Internal error. Please report to %s@google.com.\n%s\n",
+			emailAccount, compilerErr)
 	}
 }
 
diff --git a/compiler_wrapper/compiler_wrapper_test.go b/compiler_wrapper/compiler_wrapper_test.go
index a132ec5c..52b92f56 100644
--- a/compiler_wrapper/compiler_wrapper_test.go
+++ b/compiler_wrapper/compiler_wrapper_test.go
@@ -149,6 +149,19 @@ func TestPrintOtherCompilerError(t *testing.T) {
 	}
 }
 
+func TestPrintOtherCompilerErrorForAndroidLLVM(t *testing.T) {
+	buffer := bytes.Buffer{}
+
+	oldConfigName := ConfigName
+	defer func() { ConfigName = oldConfigName }()
+
+	ConfigName = "android"
+	printCompilerError(&buffer, errors.New("abcd"))
+	if buffer.String() != "Internal error. Please report to android-llvm@google.com.\nabcd\n" {
+		t.Errorf("Unexpected string. Got: %s", buffer.String())
+	}
+}
+
 func TestCalculateAndroidWrapperPath(t *testing.T) {
 	t.Parallel()
 
diff --git a/compiler_wrapper/config.go b/compiler_wrapper/config.go
index e82e6b3d..a122b5a2 100644
--- a/compiler_wrapper/config.go
+++ b/compiler_wrapper/config.go
@@ -70,6 +70,10 @@ func getRealConfig() (*config, error) {
 	return config, nil
 }
 
+func isAndroidConfig() bool {
+	return ConfigName == "android"
+}
+
 func getConfig(configName string, useCCache bool, useLlvmNext bool, version string) (*config, error) {
 	cfg := config{}
 	switch configName {