// i points at the identifier you think may be a standard function invocation
// This function tries to distinguish those invocations from method declarations.

scope tok_isMethodDeclarationNotSFInvocation

// these prefix tokens mark a non-invocation (TODO: expand)
static Set<S> #pre = lithashset(
  ".", "void", "S", "String", "int", "bool", "boolean", "A", "Object", "O", "]", "double", "float", "short", "char", "long");

sbool tok_isMethodDeclarationNotSFInvocation(LS tok, int i, S mainClassName, IPred<S> isKnownClassName) {
  if (i == 1) false;
  S prev = tok.get(i-2);
  if (eq(prev, ".") && eqGet(tok, i-4, mainClassName)) false;
  if (pre.contains(prev)) true;
  if (isKnownClassName != null && isKnownClassName.get(prev)) true;
  false;
}