Add fallback for determining parenthesis level for BinaryExpression

[Laurens-W]

What's changed?

Added fallback for determining parenthesis level for BinaryExpression

Anyone you would like to review specifically?

@timtebeek @jevanlingen @knutwannheden @sambsnyd

Any additional context

Lower versions of Gradle do not provide the _INSIDE_PARENTHESES_LEVEL flag we expect

Checklist

• I've added unit tests to cover both positive and negative cases
• I've read and applied the recipe conventions and best practices
• I've used the IntelliJ IDEA auto-formatter on affected files

[timtebeek]

Approved already, but let's await the results you get locally with the jar I've just sent.

[jevanlingen]

Maybe it's also a good idea to add an extra comment above the usage of _INSIDE_PARENTHESES_LEVEL. Something like:

private static @Nullable Integer getInsideParenthesesLevel(ASTNode node) {
  // Grab level from AST if provided (older groovy does not set this flag at all, newer versions omit this flag for MethodCallExpression nodes)
  Object rawIpl = node.getNodeMetaData("_INSIDE_PARENTHESES_LEVEL");
   ..
}