docs/MC4 reorganization: per-project docs/ and MC4/ folders, runners use MC4/

run_tests.sh

@@ -8,6 +8,7 @@ expect_ok() {
   else
     fail=$((fail+1)); echo "FAIL(ok, rejected): $1"
   fi
+  collect_mcd
 }
 expect_fail() {
   if ./M2comp "$1" 2>&1 | grep -q "Incorrect source"; then
@@ -15,6 +16,7 @@ expect_fail() {
   else
     fail=$((fail+1)); echo "FAIL(fail, accepted): $1"
   fi
+  collect_mcd
 }
 expect_dump() {
   if ./M2comp "$1" 2>&1 | grep -q "$2"; then
@@ -22,19 +24,29 @@ expect_dump() {
   else
     fail=$((fail+1)); echo "FAIL(ast): $1 [$2]"
   fi
+  collect_mcd
 }
-MCINT="${MCINT:-../mc64/mcint}"
+MCINT="${MCINT:-../m-code-64/mcint}"
+mkdir -p MC4
 MCTIMEOUT="${MCTIMEOUT:-10}"
+# MGen emits <Module>.MC4 in the current directory; the run helpers
+# below collect it into MC4/ and run it from there.
+collect_mcd() {
+  for f in *.MC4; do
+    [ -f "$f" ] && mv -f "$f" MC4/
+  done
+}
 expect_run() {
   # $1 = test file, $2 = expected printed ExitCode value
   name="$1"
   want="$2"
   mod=$(head -n 1 "tests/$name" | cut -d' ' -f2 | cut -d';' -f1)
-  mcd="$mod.MC4"
-  rm -f "$mcd"
+  mcd="MC4/$mod.MC4"
+  rm -f "$mcd" "$mod.MC4"
   if ./M2comp "tests/$name" 2>&1 | grep -q "Incorrect source"; then
     fail=$((fail+1)); echo "FAIL(run): $name rejected"; return
   fi
+  [ -f "$mod.MC4" ] && mv -f "$mod.MC4" "$mcd"
   if [ ! -f "$mcd" ]; then
     fail=$((fail+1)); echo "FAIL(run): $name no $mcd"; return
   fi
@@ -53,11 +65,12 @@ expect_run_none() {
   # $1 = test file — must compile and run silent (terminating)
   name="$1"
   mod=$(head -n 1 "tests/$name" | cut -d' ' -f2 | cut -d';' -f1)
-  mcd="$mod.MC4"
-  rm -f "$mcd"
+  mcd="MC4/$mod.MC4"
+  rm -f "$mcd" "$mod.MC4"
   if ./M2comp "tests/$name" 2>&1 | grep -q "Incorrect source"; then
     fail=$((fail+1)); echo "FAIL(silent): $name rejected"; return
   fi
+  [ -f "$mod.MC4" ] && mv -f "$mod.MC4" "$mcd"
   if [ ! -f "$mcd" ]; then
     fail=$((fail+1)); echo "FAIL(silent): $name no $mcd"; return
   fi