Variable declaration with parenthesis mistaken for function call

[jrwrigh]

It is possible (and necessary) to declare a custom defined variable by enclosing the result in parenthesis. For example:

typedef double CeedScalar;
void example(CeedScalar in[]) {
  const CeedScalar (*q) = in;
  CeedScalar (*w) = in;
  CeedScalar (*v);
}

This results in the following syntax highlighting (in neovim):

Interestingly, the markdown parser also turns up the same result (copied below in case GH updates it):

And playground for the above example returns:

[translation_unit](https://tree-sitter.github.io/tree-sitter/playground#) [0, 0] - [6, 0]
  [type_definition](https://tree-sitter.github.io/tree-sitter/playground#) [0, 0] - [0, 26]
    type: [primitive_type](https://tree-sitter.github.io/tree-sitter/playground#) [0, 8] - [0, 14]
    declarator: [type_identifier](https://tree-sitter.github.io/tree-sitter/playground#) [0, 15] - [0, 25]
  [function_definition](https://tree-sitter.github.io/tree-sitter/playground#) [1, 0] - [5, 1]
    type: [primitive_type](https://tree-sitter.github.io/tree-sitter/playground#) [1, 0] - [1, 4]
    declarator: [function_declarator](https://tree-sitter.github.io/tree-sitter/playground#) [1, 5] - [1, 29]
      declarator: [identifier](https://tree-sitter.github.io/tree-sitter/playground#) [1, 5] - [1, 12]
      parameters: [parameter_list](https://tree-sitter.github.io/tree-sitter/playground#) [1, 12] - [1, 29]
        [parameter_declaration](https://tree-sitter.github.io/tree-sitter/playground#) [1, 13] - [1, 28]
          type: [type_identifier](https://tree-sitter.github.io/tree-sitter/playground#) [1, 13] - [1, 23]
          declarator: [array_declarator](https://tree-sitter.github.io/tree-sitter/playground#) [1, 24] - [1, 28]
            declarator: [identifier](https://tree-sitter.github.io/tree-sitter/playground#) [1, 24] - [1, 26]
    body: [compound_statement](https://tree-sitter.github.io/tree-sitter/playground#) [1, 30] - [5, 1]
      [declaration](https://tree-sitter.github.io/tree-sitter/playground#) [2, 2] - [2, 39]
        [type_qualifier](https://tree-sitter.github.io/tree-sitter/playground#) [2, 2] - [2, 7]
        type: [type_identifier](https://tree-sitter.github.io/tree-sitter/playground#) [2, 8] - [2, 18]
        declarator: [init_declarator](https://tree-sitter.github.io/tree-sitter/playground#) [2, 19] - [2, 38]
          declarator: [parenthesized_declarator](https://tree-sitter.github.io/tree-sitter/playground#) [2, 19] - [2, 23]
            [pointer_declarator](https://tree-sitter.github.io/tree-sitter/playground#) [2, 20] - [2, 22]
              declarator: [identifier](https://tree-sitter.github.io/tree-sitter/playground#) [2, 21] - [2, 22]
          value: [identifier](https://tree-sitter.github.io/tree-sitter/playground#) [2, 36] - [2, 38]
      [expression_statement](https://tree-sitter.github.io/tree-sitter/playground#) [3, 2] - [3, 39]
        [assignment_expression](https://tree-sitter.github.io/tree-sitter/playground#) [3, 2] - [3, 38]
          left: [call_expression](https://tree-sitter.github.io/tree-sitter/playground#) [3, 2] - [3, 17]
            function: [identifier](https://tree-sitter.github.io/tree-sitter/playground#) [3, 2] - [3, 12]
            arguments: [argument_list](https://tree-sitter.github.io/tree-sitter/playground#) [3, 13] - [3, 17]
              [pointer_expression](https://tree-sitter.github.io/tree-sitter/playground#) [3, 14] - [3, 16]
                argument: [identifier](https://tree-sitter.github.io/tree-sitter/playground#) [3, 15] - [3, 16]
          right: [identifier](https://tree-sitter.github.io/tree-sitter/playground#) [3, 36] - [3, 38]
      [expression_statement](https://tree-sitter.github.io/tree-sitter/playground#) [4, 2] - [4, 18]
        [call_expression](https://tree-sitter.github.io/tree-sitter/playground#) [4, 2] - [4, 17]
          function: [identifier](https://tree-sitter.github.io/tree-sitter/playground#) [4, 2] - [4, 12]
          arguments: [argument_list](https://tree-sitter.github.io/tree-sitter/playground#) [4, 13] - [4, 17]
            [pointer_expression](https://tree-sitter.github.io/tree-sitter/playground#) [4, 14] - [4, 16]
              argument: [identifier](https://tree-sitter.github.io/tree-sitter/playground#) [4, 15] - [4, 16]

where const CeedScalar (*q) = in; is treated as a declaration, while CeedScalar (*w) = in; and CeedScalar (*v); are treated as expression_statements.

Although the markdown syntax highlighter also treats the second CeedScalar as a function call, it really shouldn't be. The first bug (CeedScalar (*w) = in;) can be easily differentiated since a function call cannot be on the LHS of an expression statement. The second CeedScalar (*v); is probably a bit trickier.