mesa: include mtypes.h less

- remove mtypes.h from most header files
- add main/menums.h for often used definitions
- remove main/core.h

v2: fix radv build

Reviewed-by: Brian Paul <brianp@vmware.com>

src/compiler/glsl/ir_optimization.h

@@ -30,6 +30,9 @@
 #ifndef GLSL_IR_OPTIMIZATION_H
 #define GLSL_IR_OPTIMIZATION_H
 
+struct gl_linked_shader;
+struct gl_shader_program;
+
 /* Operations for lower_instructions() */
 #define SUB_TO_ADD_NEG     0x01
 #define FDIV_TO_MUL_RCP    0x02