migration: annotate JS tests with verified Go coverage triage

Adds a // MIGRATION: comment to the first line of every JS test file
under test/qa-tests/ and test/legacy42/ indicating its migration status:

- SKIP (27 files): genuinely covered by existing Go tests, broken pipe
  tests (OS-signal-level, not testable in Go), or already disabled
- NEW (111 files): no Go test coverage exists for this scenario
- EXTEND (41 files): partial Go coverage exists but specific sub-scenarios
  are missing

Each annotation includes the justification and the target Go test file.

Co-Authored-By: Claude Code <noreply@anthropic.com>

Author: autarch

.ai-plans/2026-03-13/js-to-go-test-migration/plan.md

@@ -1,3 +1,4 @@
+// MIGRATION: NEW — no Go coverage, goes in common/util test or tool-specific test
 jsTest.log("Testing spaces in mongodump command-line options...");
 
 /**

test/legacy42/jstests/tool/command_line_quotes.js

@@ -1,3 +1,4 @@
+// MIGRATION: EXTEND — csv_test.go covers unit-level CSV parsing but no Go test covers end-to-end CSV export then re-import with --headerline; goes in mongoexport/mongoexport_test.go
 // csv1.js
 
 t = new ToolTest("csv1");

test/legacy42/jstests/tool/csv1.js

@@ -1,3 +1,4 @@
+// MIGRATION: NEW — no Go test exports various BSON types (ObjectId, BinData, ISODate, Timestamp, Regex, function) to CSV and verifies formatting; goes in mongoexport/mongoexport_test.go
 // csvexport1.js
 
 t = new ToolTest("csvexport1");

test/legacy42/jstests/tool/csvexport1.js

@@ -1,3 +1,4 @@
+// MIGRATION: SKIP — csv_test.go covers CSV export variants
 // csvexport2.js
 
 t = new ToolTest("csvexport2");

test/legacy42/jstests/tool/csvexport2.js

@@ -1,3 +1,4 @@
+// MIGRATION: EXTEND — csv_test.go covers parsing but no Go test covers end-to-end import of multiline CSV with embedded quotes, empty strings, and leading/trailing whitespace; goes in mongoimport/mongoimport_test.go
 // csvimport1.js
 
 t = new ToolTest("csvimport1");

test/legacy42/jstests/tool/csvimport1.js

@@ -1,3 +1,4 @@
+// MIGRATION: EXTEND — TestDumpRestoreEnforcesAuthRoles covers backup/restore roles but does not verify system.profile is included in the dump; goes in mongorestore/dumprestore_auth_test.go
 // dumpauth.js
 // test mongodump with authentication
 

test/legacy42/jstests/tool/dumpauth.js

@@ -1,3 +1,4 @@
+// MIGRATION: EXTEND — basic dump/restore covered but missing --collection without --db error (SERVER-7721) and --dir - without --db --collection error; goes in mongodump/mongodump_qa_test.go
 // dumprestore1.js
 
 t = new ToolTest("dumprestore1");

test/legacy42/jstests/tool/dumprestore1.js

@@ -1,3 +1,4 @@
+// MIGRATION: NEW — no Go coverage, goes in dumprestore_auth_test.go (ReplSetTestType)
 // simple test to ensure write concern functions as expected
 (function() {
 // Skip this test if running with --nojournal and WiredTiger.

test/legacy42/jstests/tool/dumprestore10.js

@@ -1,3 +1,4 @@
+// MIGRATION: NEW — no Go coverage, goes in mongorestore_test.go (ReplSetTestType)
 // mongodump/mongoexport from primary should succeed.  mongorestore and mongoimport to a
 // secondary node should fail.