accounts/abi/bind: pass non-empty directory when calling goimports (#15070)

Author: nkbai

accounts/abi/bind/bind.go

@@ -122,7 +122,7 @@ func Bind(types []string, abis []string, bytecodes []string, pkg string, lang La
 	}
 	// For Go bindings pass the code through goimports to clean it up and double check
 	if lang == LangGo {
-		code, err := imports.Process("", buffer.Bytes(), nil)
+		code, err := imports.Process(".", buffer.Bytes(), nil)
 		if err != nil {
 			return "", fmt.Errorf("%v\n%s", err, buffer)
 		}

accounts/abi/bind/bind_test.go

@@ -459,7 +459,7 @@ func TestBindings(t *testing.T) {
 	}
 	// Skip the test if the go-ethereum sources are symlinked (https://github.com/golang/go/issues/14845)
 	linkTestCode := fmt.Sprintf("package linktest\nfunc CheckSymlinks(){\nfmt.Println(backends.NewSimulatedBackend(nil))\n}")
-	linkTestDeps, err := imports.Process("", []byte(linkTestCode), nil)
+	linkTestDeps, err := imports.Process(os.TempDir(), []byte(linkTestCode), nil)
 	if err != nil {
 		t.Fatalf("failed check for goimports symlink bug: %v", err)
 	}