compiler: check overloaded methods for safeness one more time

It's possible that overloaded method is marked as `safe` in manifest, so
that it must have `save` field set to true after its name was
overwritten.

pkg/compiler/debug.go

@@ -461,6 +461,13 @@ func (di *DebugInfo) ConvertToManifest(o *Options) (*manifest.Manifest, error) {
 				"multiple methods with the same number of parameters", name)
 		}
 		m.Name = emitName
+		// Check the resulting name against set of safe methods.
+		for i := range o.SafeMethods {
+			if m.Name == o.SafeMethods[i] {
+				m.Safe = true
+				break
+			}
+		}
 	}
 	return result, nil
 }

pkg/smartcontract/manifest/standard/comply.go

@@ -129,7 +129,7 @@ func checkMethod(m *manifest.Manifest, expected *manifest.Method,
 		}
 	}
 	if expected.Safe != actual.Safe {
-		return fmt.Errorf("%w: expected %t", ErrSafeMethodMismatch, expected.Safe)
+		return fmt.Errorf("'%s' %w: expected %t", expected.Name, ErrSafeMethodMismatch, expected.Safe)
 	}
 	return nil
 }