Add inline debug generation for assembly target flag (#2028)

src/llvm_backend.cpp

@@ -1420,7 +1420,7 @@ void lb_generate_code(lbGenerator *gen) {
 				}
 			}
 
-			LLVMBool split_debug_inlining = false;
+			LLVMBool split_debug_inlining = build_context.build_mode == BuildMode_Assembly;
 			LLVMBool debug_info_for_profiling = false;
 
 			m->debug_compile_unit = LLVMDIBuilderCreateCompileUnit(m->debug_builder, LLVMDWARFSourceLanguageC99,