Change policy with legacy compiler backend

[JS] Remove incremental js jps test

[JS] Remove test of maven js archetype

[JS] Fix another one test

[JS] Fix tests for jps

[JS] Try to fix maven test data

[JS] Fix test data

[JS] Fix test data for ant

[JS] Fix jsExtraHelp test

[JS] Fix test run from not-Gradle build tools

[JS] Set flag without compiler error

[JS] Disable warnings and errors in legacy compiler called from Gradle

[JS] Proofread messages

[JS] Not proofread messages

KT-42326

compiler/testData/cli/js/jsExtraHelp.out

@@ -44,6 +44,8 @@ where advanced options include:
   -Xrepositories=<path>      Paths to additional places where libraries could be found
   -Xstrict-implicit-export-types Generate strict types for implicitly exported entities inside d.ts files. Available in IR backend only.
   -Xtyped-arrays             Translate primitive arrays to JS typed arrays
+  -Xuse-deprecated-legacy-compiler
+                             Use deprecated legacy compiler without error
   -Xwasm                     Use experimental WebAssembly compiler backend
   -Xwasm-debug-info          Add debug info to WebAssembly compiled module
   -Xwasm-enable-array-range-checks