Glslang get global glsl methods (with overloads) for specific glsl version



was playing with glslang for glsl script validation and wanted to get full list of global methods (sin, cos e.c…) but after checking AST output of the file didnt saw them there.
Is there any way to extract such information from glslang? Ideally would like to pass glsl version and get supported methods with overlaods in AST format, similar as its returned for the code in the file.

Thank you