[glsl] Two top-level grammars specified

[kaby76]

In the latest version of trgen, a grammar that has two or more top-level grammars cannot work without specifying in the desc.xml to pick one.

In glsl, there is a parser grammar and a parser grammar for a preprocessor. At the moment, the tester cannot pipeline parsers together, i.e., take output of preprocessor and pass to post-preprocessor parser. The desc.xml must specify <grammar-name>GLSL</grammar-name>.

[msagca]

The same is true for the Verilog and SystemVerilog grammars. I had created a pull request (#3353) to address this issue following our conversation (#3348). It's been marked as draft for a long time. Should I specify one grammar name in the desc.xml for these three grammars and be done with it? (Edit: desc.xml of the Verilog grammars look OK)

[kaby76]

Yes the desc.xml should be updated. But I am still not quite ready with kaby76/Trash#486 and #4246. They fix a number of problems but antlr 4.13.2 broke python3_12_1.