[flake8-use-pathlib] Catch redundant joins in PTH201 and avoid syntax errors (#15177)

## Summary

Resolves #10453, resolves #15165.

## Test Plan

`cargo nextest run` and `cargo insta test`.

crates/ruff_linter/resources/test/fixtures/flake8_use_pathlib/PTH201.py

@@ -1,15 +1,70 @@
 from pathlib import Path, PurePath
 from pathlib import Path as pth
 
+
 # match
 _ = Path(".")
 _ = pth(".")
 _ = PurePath(".")
 _ = Path("")
 
+Path('', )
+
+Path(
+    '',
+)
+
+Path(  # Comment before argument
+    '',
+)
+
+Path(
+    '',  # EOL comment
+)
+
+Path(
+    ''  # Comment in the middle of implicitly concatenated string
+    ".",
+)
+
+Path(
+    ''  # Comment before comma
+    ,
+)
+
+Path(
+    '',
+) / "bare"
+
+Path(  # Comment before argument
+    '',
+) / ("parenthesized")
+
+Path(
+    '',  # EOL comment
+) / ( ("double parenthesized"  )   )
+
+(  Path(
+    ''  # Comment in the middle of implicitly concatenated string
+    ".",
+) )/ (("parenthesized path call")
+      # Comment between closing parentheses
+)
+
+Path(
+    ''  # Comment before comma
+    ,
+) / "multiple" / (
+    "frag"  # Comment
+    'ment'
+)
+
+
 # no match
 _ = Path()
 print(".")
 Path("file.txt")
 Path(".", "folder")
 PurePath(".", "folder")
+
+Path()