Assert on failure to compile glsl and unimplemented shader instrs.

src/xenia/gpu/gl4/gl4_shader.cc

@@ -337,6 +337,7 @@ bool GL4Shader::CompileProgram(std::string source) {
                         const_cast<char*>(info_log.data()));
     PLOGE("Unable to link program: %s", info_log.c_str());
     error_log_ = std::move(info_log);
+    assert_always("Unable to link generated shader");
     return false;
   }
 

src/xenia/gpu/gl4/gl4_shader_translator.cc

@@ -1390,6 +1390,7 @@ bool GL4ShaderTranslator::TranslateALU(const instr_alu_t* alu, int sync) {
         return false;
       }
     } else {
+      assert_always();
       Append("  // <UNIMPLEMENTED>\n");
     }
   }
@@ -1440,6 +1441,7 @@ bool GL4ShaderTranslator::TranslateALU(const instr_alu_t* alu, int sync) {
         return false;
       }
     } else {
+      // assert_always();
       Append("  // <UNIMPLEMENTED>\n");
     }
   }