[#81064] Fix bug causing endless iteration

Signed-off-by: Artur Bieniek <abieniek@internships.antmicro.com>

Author: ArturBieniek4

source/SvBugpoint.cpp

@@ -133,7 +133,7 @@ bool lineRemover(const std::string& stageName, const std::string& passIdx, SvBug
     size_t fileSize = st.st_size;
     if (fileSize == 0) {
         close(fd);
-        return true;
+        return false;
     }
 
     char* data =

tests/Makefile

@@ -46,6 +46,10 @@ test_short_exit1:
 test_short_grep:
 	@./run_test short_grep checkgrep.sh ${INPUT_DIR}/short_in.sv
 
+.PHONY: test_empty
+test_empty:
+	@timeout 15s ./run_test empty checkexit0.sh ${INPUT_DIR}/short_in/empty.sv
+
 .PHONY: test_comment_dir
 test_comment_dir:
 	@./run_test comment_dir checkverilator_run.sh ${INPUT_DIR}/comment_dir_in.sv

tests/golden/empty/debug/trace

@@ -0,0 +1,2 @@
+pass	stage	lines_removed	committed	time	idx	type_info	input_file
+-	dryRun	0	1	1ms	0	-	empty.sv