Dir-file conflict

```
virtualenv --clear -p 3.10 .venv -q
cargo run --bin puffin -q -- pip-sync scripts/dir_file_conflict/requirements.txt
```

scripts/dir_file_conflict/has_dir/pyproject.toml

@@ -0,0 +1,18 @@
+[tool.poetry]
+name = "has-dir"
+version = "0.1.0"
+description = ""
+authors = ["konstin <konstin@mailbox.org>"]
+readme = "README.md"
+packages = [
+    { include = "requirements" },
+]
+include = ["conflicting2"]
+
+[tool.poetry.dependencies]
+python = "^3.10"
+
+
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"

scripts/dir_file_conflict/has_file/pyproject.toml

@@ -0,0 +1,18 @@
+[tool.poetry]
+name = "has-file"
+version = "0.1.0"
+description = ""
+authors = ["konstin <konstin@mailbox.org>"]
+readme = "README.md"
+packages = [
+    { include = "requirements" },
+]
+include = ["conflicting2"]
+
+[tool.poetry.dependencies]
+python = "^3.10"
+
+
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"

scripts/dir_file_conflict/requirements.txt

@@ -0,0 +1,2 @@
+has_dir @ file://${PWD}/scripts/dir_file_conflict/has_dir/dist/has_dir-0.1.0-py3-none-any.whl
+has_file @ file://${PWD}/scripts/dir_file_conflict/has_file/dist/has_file-0.1.0-py3-none-any.whl